/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_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:35:41,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:35:41,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:35:41,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:35:41,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:35:41,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:35:41,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:35:41,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:35:41,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:35:41,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:35:41,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:35:41,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:35:41,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:35:41,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:35:41,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:35:41,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:35:41,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:35:41,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:35:41,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:35:41,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:35:41,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:35:41,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:35:41,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:35:41,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:35:41,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:35:41,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:35:41,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:35:41,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:35:41,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:35:41,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:35:41,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:35:41,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:35:41,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:35:41,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:35:41,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:35:41,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:35:41,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:35:41,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:35:41,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:35:41,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:35:41,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:35:41,214 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 06:35:41,267 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:35:41,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:35:41,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:35:41,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:35:41,273 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:35:41,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:35:41,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:35:41,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:35:41,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:35:41,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:35:41,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:35:41,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:35:41,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:35:41,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:35:41,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:35:41,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:35:41,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:35:41,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:35:41,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:35:41,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:35:41,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:35:41,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:35:41,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:35:41,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:35:41,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:35:41,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:35:41,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:35:41,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:35:41,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:35:41,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:35:41,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:35:41,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:35:41,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:35:41,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:35:41,738 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:35:41,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label00.c [2020-10-29 06:35:41,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7c5c5343/8158c8e98d8449a6b481a1b5eef4ecc0/FLAG6993749c7 [2020-10-29 06:35:42,646 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:35:42,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label00.c [2020-10-29 06:35:42,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7c5c5343/8158c8e98d8449a6b481a1b5eef4ecc0/FLAG6993749c7 [2020-10-29 06:35:42,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7c5c5343/8158c8e98d8449a6b481a1b5eef4ecc0 [2020-10-29 06:35:42,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:35:42,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:35:42,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:35:42,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:35:42,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:35:42,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:35:42" (1/1) ... [2020-10-29 06:35:42,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6e5ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:42, skipping insertion in model container [2020-10-29 06:35:42,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:35:42" (1/1) ... [2020-10-29 06:35:42,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:35:43,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:35:43,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:35:43,474 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:35:43,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:35:43,715 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:35:43,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43 WrapperNode [2020-10-29 06:35:43,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:35:43,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:35:43,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:35:43,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:35:43,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (1/1) ... [2020-10-29 06:35:43,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:35:43,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:35:43,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:35:43,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:35:43,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (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 06:35:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:35:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:35:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:35:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:35:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:35:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:35:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:35:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:35:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:35:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:35:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:35:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:35:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:35:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:35:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:35:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:35:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:35:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:35:45,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:35:45,549 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:35:45,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:35:45 BoogieIcfgContainer [2020-10-29 06:35:45,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:35:45,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:35:45,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:35:45,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:35:45,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:35:42" (1/3) ... [2020-10-29 06:35:45,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6fc02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:35:45, skipping insertion in model container [2020-10-29 06:35:45,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:35:43" (2/3) ... [2020-10-29 06:35:45,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6fc02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:35:45, skipping insertion in model container [2020-10-29 06:35:45,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:35:45" (3/3) ... [2020-10-29 06:35:45,561 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label00.c [2020-10-29 06:35:45,573 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:35:45,579 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:35:45,593 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:35:45,624 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:35:45,624 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:35:45,624 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:35:45,625 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:35:45,625 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:35:45,625 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:35:45,625 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:35:45,625 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:35:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:35:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 06:35:45,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:35:45,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:35:45,660 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:35:45,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:35:45,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1027549924, now seen corresponding path program 1 times [2020-10-29 06:35:45,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:35:45,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494983869] [2020-10-29 06:35:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:35:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:45,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:46,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:46,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 06:35:46,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:35:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-29 06:35:46,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:46,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:35:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:35:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 06:35:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:35:46,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:35:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:46,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:46,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:35:46,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:35:46,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 06:35:46,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:46,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:35:46,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:35:46,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:35:46,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:35:46,845 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 06:35:46,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494983869] [2020-10-29 06:35:46,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:35:46,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 06:35:46,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552728550] [2020-10-29 06:35:46,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:35:46,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:35:46,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:35:46,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:35:46,876 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-29 06:35:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:35:50,313 INFO L93 Difference]: Finished difference Result 735 states and 1307 transitions. [2020-10-29 06:35:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:35:50,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-29 06:35:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:35:50,338 INFO L225 Difference]: With dead ends: 735 [2020-10-29 06:35:50,338 INFO L226 Difference]: Without dead ends: 448 [2020-10-29 06:35:50,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:35:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-29 06:35:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-29 06:35:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-29 06:35:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 673 transitions. [2020-10-29 06:35:50,450 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 673 transitions. Word has length 54 [2020-10-29 06:35:50,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:35:50,451 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 673 transitions. [2020-10-29 06:35:50,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:35:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 673 transitions. [2020-10-29 06:35:50,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-29 06:35:50,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:35:50,461 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:50,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:35:50,462 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:35:50,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:35:50,463 INFO L82 PathProgramCache]: Analyzing trace with hash -237515080, now seen corresponding path program 1 times [2020-10-29 06:35:50,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:35:50,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013775570] [2020-10-29 06:35:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:35:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:50,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:50,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:54,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:54,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-29 06:35:54,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:35:54,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3663 [2020-10-29 06:35:54,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:54,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:54,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:35:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:35:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:35:54,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:35:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:35:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:54,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:54,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:54,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:35:54,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:35:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 06:35:54,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:54,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:35:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:35:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:35:54,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:35:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:35:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:54,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:54,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:54,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:35:54,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:35:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-29 06:35:54,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:54,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:35:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:35:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:35:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:35:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:35:54,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013775570] [2020-10-29 06:35:54,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:35:54,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:35:54,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120893382] [2020-10-29 06:35:54,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:35:54,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:35:54,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:35:54,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:35:54,925 INFO L87 Difference]: Start difference. First operand 442 states and 673 transitions. Second operand 7 states. [2020-10-29 06:35:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:35:56,958 INFO L93 Difference]: Finished difference Result 1035 states and 1592 transitions. [2020-10-29 06:35:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:35:56,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-10-29 06:35:56,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:35:56,965 INFO L225 Difference]: With dead ends: 1035 [2020-10-29 06:35:56,966 INFO L226 Difference]: Without dead ends: 599 [2020-10-29 06:35:56,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:35:56,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-29 06:35:57,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 591. [2020-10-29 06:35:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-29 06:35:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 866 transitions. [2020-10-29 06:35:57,015 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 866 transitions. Word has length 173 [2020-10-29 06:35:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:35:57,016 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 866 transitions. [2020-10-29 06:35:57,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:35:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 866 transitions. [2020-10-29 06:35:57,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-29 06:35:57,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:35:57,021 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:57,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:35:57,022 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:35:57,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:35:57,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1330229672, now seen corresponding path program 1 times [2020-10-29 06:35:57,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:35:57,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412004969] [2020-10-29 06:35:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:35:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:57,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:57,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:58,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:59,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:59,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 06:35:59,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:35:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1984 [2020-10-29 06:35:59,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:59,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:35:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:35:59,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 06:35:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:35:59,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:35:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:59,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:59,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:35:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:35:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 06:35:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:59,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:35:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:35:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:35:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:35:59,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:35:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:35:59,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:35:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:35:59,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:35:59,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:35:59,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-29 06:35:59,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:35:59,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:35:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:35:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:35:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:35:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:35:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:35:59,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412004969] [2020-10-29 06:35:59,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:35:59,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:35:59,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093264878] [2020-10-29 06:35:59,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:35:59,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:35:59,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:35:59,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:35:59,828 INFO L87 Difference]: Start difference. First operand 591 states and 866 transitions. Second operand 7 states. [2020-10-29 06:36:01,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:01,804 INFO L93 Difference]: Finished difference Result 1633 states and 2472 transitions. [2020-10-29 06:36:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:36:01,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-10-29 06:36:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:01,816 INFO L225 Difference]: With dead ends: 1633 [2020-10-29 06:36:01,816 INFO L226 Difference]: Without dead ends: 1048 [2020-10-29 06:36:01,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:36:01,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2020-10-29 06:36:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 740. [2020-10-29 06:36:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-10-29 06:36:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 959 transitions. [2020-10-29 06:36:01,881 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 959 transitions. Word has length 180 [2020-10-29 06:36:01,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:01,883 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 959 transitions. [2020-10-29 06:36:01,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:01,885 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 959 transitions. [2020-10-29 06:36:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-29 06:36:01,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:01,898 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:36:01,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:36:01,900 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:01,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:01,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1491696724, now seen corresponding path program 1 times [2020-10-29 06:36:01,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:01,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41915117] [2020-10-29 06:36:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:02,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:02,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:04,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-29 06:36:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:36:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2331 [2020-10-29 06:36:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:04,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:36:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:36:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:04,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:04,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:36:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:04,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:04,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:04,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:04,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:04,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:36:04,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 06:36:04,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:04,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:04,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:04,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:04,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:36:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 06:36:04,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:36:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:04,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:04,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:36:04,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 06:36:04,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:04,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:04,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:04,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:36:04,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:36:04,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41915117] [2020-10-29 06:36:04,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:04,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:04,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619032648] [2020-10-29 06:36:04,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:04,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:04,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:05,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:05,000 INFO L87 Difference]: Start difference. First operand 740 states and 959 transitions. Second operand 7 states. [2020-10-29 06:36:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:07,072 INFO L93 Difference]: Finished difference Result 1500 states and 2031 transitions. [2020-10-29 06:36:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:36:07,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-29 06:36:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:07,079 INFO L225 Difference]: With dead ends: 1500 [2020-10-29 06:36:07,080 INFO L226 Difference]: Without dead ends: 909 [2020-10-29 06:36:07,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:36:07,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-10-29 06:36:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 891. [2020-10-29 06:36:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-29 06:36:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1129 transitions. [2020-10-29 06:36:07,122 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1129 transitions. Word has length 243 [2020-10-29 06:36:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:07,123 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1129 transitions. [2020-10-29 06:36:07,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1129 transitions. [2020-10-29 06:36:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-29 06:36:07,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:07,129 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:36:07,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:36:07,129 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:07,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:07,130 INFO L82 PathProgramCache]: Analyzing trace with hash 6422036, now seen corresponding path program 1 times [2020-10-29 06:36:07,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:07,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148047004] [2020-10-29 06:36:07,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:07,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:08,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:09,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:09,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-29 06:36:09,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:36:09,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1889 [2020-10-29 06:36:09,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:09,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:09,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:36:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:36:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:09,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:09,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:09,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:09,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:36:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:09,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:09,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:09,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:09,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:09,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:09,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:09,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:36:09,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:09,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 06:36:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:09,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:09,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:09,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:36:09,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 06:36:09,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:09,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:09,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:09,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:09,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:36:09,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:09,714 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:36:09,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148047004] [2020-10-29 06:36:09,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:09,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:09,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450262886] [2020-10-29 06:36:09,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:09,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:09,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:09,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:09,718 INFO L87 Difference]: Start difference. First operand 891 states and 1129 transitions. Second operand 7 states. [2020-10-29 06:36:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:12,770 INFO L93 Difference]: Finished difference Result 2565 states and 3452 transitions. [2020-10-29 06:36:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:36:12,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-10-29 06:36:12,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:12,782 INFO L225 Difference]: With dead ends: 2565 [2020-10-29 06:36:12,782 INFO L226 Difference]: Without dead ends: 1368 [2020-10-29 06:36:12,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 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 06:36:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-29 06:36:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1362. [2020-10-29 06:36:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1362 states. [2020-10-29 06:36:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1739 transitions. [2020-10-29 06:36:12,871 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1739 transitions. Word has length 252 [2020-10-29 06:36:12,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:12,871 INFO L481 AbstractCegarLoop]: Abstraction has 1362 states and 1739 transitions. [2020-10-29 06:36:12,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1739 transitions. [2020-10-29 06:36:12,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-29 06:36:12,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:12,879 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:36:12,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:36:12,879 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:12,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:12,880 INFO L82 PathProgramCache]: Analyzing trace with hash 438397492, now seen corresponding path program 1 times [2020-10-29 06:36:12,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:12,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074428666] [2020-10-29 06:36:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:12,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:13,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:13,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:13,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:17,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:17,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-29 06:36:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:36:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 06:36:17,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:17,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 06:36:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:36:17,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:18,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:18,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:18,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:18,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:18,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:36:18,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:18,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:18,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:18,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:18,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 06:36:18,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:18,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 06:36:18,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:18,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 06:36:18,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:18,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 06:36:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:18,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:18,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:18,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:36:18,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-29 06:36:18,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:18,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:36:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:36:18,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074428666] [2020-10-29 06:36:18,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:18,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:18,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124321850] [2020-10-29 06:36:18,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:18,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:18,808 INFO L87 Difference]: Start difference. First operand 1362 states and 1739 transitions. Second operand 7 states. [2020-10-29 06:36:21,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:21,160 INFO L93 Difference]: Finished difference Result 2915 states and 4044 transitions. [2020-10-29 06:36:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:36:21,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-10-29 06:36:21,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:21,174 INFO L225 Difference]: With dead ends: 2915 [2020-10-29 06:36:21,174 INFO L226 Difference]: Without dead ends: 1706 [2020-10-29 06:36:21,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:36:21,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-10-29 06:36:21,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1664. [2020-10-29 06:36:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2020-10-29 06:36:21,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2087 transitions. [2020-10-29 06:36:21,249 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2087 transitions. Word has length 268 [2020-10-29 06:36:21,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:21,249 INFO L481 AbstractCegarLoop]: Abstraction has 1664 states and 2087 transitions. [2020-10-29 06:36:21,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2087 transitions. [2020-10-29 06:36:21,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-29 06:36:21,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:21,257 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:36:21,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:36:21,258 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:21,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:21,258 INFO L82 PathProgramCache]: Analyzing trace with hash 985534812, now seen corresponding path program 1 times [2020-10-29 06:36:21,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:21,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761701975] [2020-10-29 06:36:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:21,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:21,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:23,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:23,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-29 06:36:23,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:36:23,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-10-29 06:36:23,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:23,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:36:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:36:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:23,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:23,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:23,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:23,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:23,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:23,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:36:23,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:23,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:23,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:23,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:23,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:36:23,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 06:36:23,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:23,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:36:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:23,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:36:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:23,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:24,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:24,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:36:24,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:36:24,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:36:24,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761701975] [2020-10-29 06:36:24,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:24,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:24,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014823740] [2020-10-29 06:36:24,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:24,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:24,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:24,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:24,153 INFO L87 Difference]: Start difference. First operand 1664 states and 2087 transitions. Second operand 7 states. [2020-10-29 06:36:26,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:26,399 INFO L93 Difference]: Finished difference Result 3479 states and 4487 transitions. [2020-10-29 06:36:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:36:26,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2020-10-29 06:36:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:26,419 INFO L225 Difference]: With dead ends: 3479 [2020-10-29 06:36:26,419 INFO L226 Difference]: Without dead ends: 1968 [2020-10-29 06:36:26,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:36:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2020-10-29 06:36:26,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1954. [2020-10-29 06:36:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2020-10-29 06:36:26,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2427 transitions. [2020-10-29 06:36:26,508 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2427 transitions. Word has length 288 [2020-10-29 06:36:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:26,509 INFO L481 AbstractCegarLoop]: Abstraction has 1954 states and 2427 transitions. [2020-10-29 06:36:26,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2427 transitions. [2020-10-29 06:36:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-29 06:36:26,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:26,519 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:36:26,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:36:26,519 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:26,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:26,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2054066352, now seen corresponding path program 1 times [2020-10-29 06:36:26,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:26,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747712782] [2020-10-29 06:36:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:26,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:26,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:26,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:28,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:31,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:31,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-29 06:36:31,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:36:31,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 06:36:31,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:31,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:31,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:31,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-29 06:36:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 06:36:31,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:31,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:31,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:31,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:31,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:31,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 06:36:31,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:31,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:31,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:31,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 06:36:31,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:31,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 06:36:31,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:31,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:31,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 06:36:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:36:32,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 06:36:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:32,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:32,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:32,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:36:32,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 06:36:32,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:32,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:36:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 211 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:36:32,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747712782] [2020-10-29 06:36:32,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:32,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:32,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124583797] [2020-10-29 06:36:32,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:32,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:32,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:32,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:32,369 INFO L87 Difference]: Start difference. First operand 1954 states and 2427 transitions. Second operand 7 states. [2020-10-29 06:36:35,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:35,340 INFO L93 Difference]: Finished difference Result 4361 states and 5472 transitions. [2020-10-29 06:36:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:36:35,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 301 [2020-10-29 06:36:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:35,355 INFO L225 Difference]: With dead ends: 4361 [2020-10-29 06:36:35,356 INFO L226 Difference]: Without dead ends: 2258 [2020-10-29 06:36:35,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 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 06:36:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2020-10-29 06:36:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2232. [2020-10-29 06:36:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2020-10-29 06:36:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2704 transitions. [2020-10-29 06:36:35,461 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2704 transitions. Word has length 301 [2020-10-29 06:36:35,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:35,462 INFO L481 AbstractCegarLoop]: Abstraction has 2232 states and 2704 transitions. [2020-10-29 06:36:35,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2704 transitions. [2020-10-29 06:36:35,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-29 06:36:35,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:35,474 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:36:35,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:36:35,474 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:35,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:35,475 INFO L82 PathProgramCache]: Analyzing trace with hash 76839032, now seen corresponding path program 1 times [2020-10-29 06:36:35,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:35,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314512092] [2020-10-29 06:36:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:35,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:35,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:35,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:40,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:40,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-29 06:36:40,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:36:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 06:36:40,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:40,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:36:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 06:36:40,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-29 06:36:40,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:40,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:40,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:40,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:40,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:40,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 06:36:40,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 06:36:40,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:40,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:40,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 06:36:40,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:40,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 06:36:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:40,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:40,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:40,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:40,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 06:36:40,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:36:40,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 06:36:40,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:40,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:40,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 06:36:40,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:40,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-29 06:36:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:41,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:41,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:36:41,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:41,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 06:36:41,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:41,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:36:41,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 296 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-29 06:36:41,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314512092] [2020-10-29 06:36:41,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:41,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:41,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206622771] [2020-10-29 06:36:41,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:41,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:41,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:41,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:41,175 INFO L87 Difference]: Start difference. First operand 2232 states and 2704 transitions. Second operand 7 states. [2020-10-29 06:36:43,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:43,111 INFO L93 Difference]: Finished difference Result 4027 states and 4847 transitions. [2020-10-29 06:36:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:36:43,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 343 [2020-10-29 06:36:43,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:43,123 INFO L225 Difference]: With dead ends: 4027 [2020-10-29 06:36:43,123 INFO L226 Difference]: Without dead ends: 1944 [2020-10-29 06:36:43,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 06:36:43,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-10-29 06:36:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1493. [2020-10-29 06:36:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2020-10-29 06:36:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1754 transitions. [2020-10-29 06:36:43,182 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1754 transitions. Word has length 343 [2020-10-29 06:36:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:43,182 INFO L481 AbstractCegarLoop]: Abstraction has 1493 states and 1754 transitions. [2020-10-29 06:36:43,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1754 transitions. [2020-10-29 06:36:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-29 06:36:43,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:43,188 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:36:43,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:36:43,188 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:43,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1947545492, now seen corresponding path program 1 times [2020-10-29 06:36:43,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:43,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433616447] [2020-10-29 06:36:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:43,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:43,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:43,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:48,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:48,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 381 [2020-10-29 06:36:48,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:36:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-29 06:36:48,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:48,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-29 06:36:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:36:48,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:48,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:48,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:48,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:48,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:48,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:36:48,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:48,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:48,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:48,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:48,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:48,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:48,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:48,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:48,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:48,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:48,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:36:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:48,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:48,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:48,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:36:48,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 06:36:48,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:48,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:36:48,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:48,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-29 06:36:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:48,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:48,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:48,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:36:48,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:36:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:49,044 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 329 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-29 06:36:49,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433616447] [2020-10-29 06:36:49,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:49,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:36:49,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638415315] [2020-10-29 06:36:49,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:36:49,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:49,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:36:49,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:36:49,048 INFO L87 Difference]: Start difference. First operand 1493 states and 1754 transitions. Second operand 7 states. [2020-10-29 06:36:51,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:51,103 INFO L93 Difference]: Finished difference Result 3284 states and 3917 transitions. [2020-10-29 06:36:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:36:51,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2020-10-29 06:36:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:51,115 INFO L225 Difference]: With dead ends: 3284 [2020-10-29 06:36:51,115 INFO L226 Difference]: Without dead ends: 1940 [2020-10-29 06:36:51,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 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 06:36:51,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2020-10-29 06:36:51,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1932. [2020-10-29 06:36:51,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2020-10-29 06:36:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2256 transitions. [2020-10-29 06:36:51,175 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2256 transitions. Word has length 365 [2020-10-29 06:36:51,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:51,176 INFO L481 AbstractCegarLoop]: Abstraction has 1932 states and 2256 transitions. [2020-10-29 06:36:51,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:36:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2256 transitions. [2020-10-29 06:36:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-29 06:36:51,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:51,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 06:36:51,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:36:51,183 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:51,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:51,184 INFO L82 PathProgramCache]: Analyzing trace with hash -142899728, now seen corresponding path program 1 times [2020-10-29 06:36:51,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:51,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554892439] [2020-10-29 06:36:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:51,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:51,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:51,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:52,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3062 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-29 06:36:54,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:54,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:36:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:54,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:36:54,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:36:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:54,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:36:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:54,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:36:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:36:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:36:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:54,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:36:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:54,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:54,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:54,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:36:54,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:36:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:54,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-29 06:36:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:54,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:54,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:36:54,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:36:54,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:36:54,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 06:36:54,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:36:54,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:36:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:36:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:36:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:36:54,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:36:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 384 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 06:36:54,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554892439] [2020-10-29 06:36:54,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:36:54,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:36:54,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108580838] [2020-10-29 06:36:54,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:36:54,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:36:54,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:36:54,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:36:54,953 INFO L87 Difference]: Start difference. First operand 1932 states and 2256 transitions. Second operand 8 states. [2020-10-29 06:36:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:36:57,190 INFO L93 Difference]: Finished difference Result 4458 states and 5263 transitions. [2020-10-29 06:36:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:36:57,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 366 [2020-10-29 06:36:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:36:57,204 INFO L225 Difference]: With dead ends: 4458 [2020-10-29 06:36:57,205 INFO L226 Difference]: Without dead ends: 2675 [2020-10-29 06:36:57,210 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 06:36:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2020-10-29 06:36:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2673. [2020-10-29 06:36:57,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2673 states. [2020-10-29 06:36:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3093 transitions. [2020-10-29 06:36:57,289 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3093 transitions. Word has length 366 [2020-10-29 06:36:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:36:57,290 INFO L481 AbstractCegarLoop]: Abstraction has 2673 states and 3093 transitions. [2020-10-29 06:36:57,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:36:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3093 transitions. [2020-10-29 06:36:57,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-29 06:36:57,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:36:57,299 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:36:57,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:36:57,299 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:36:57,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:36:57,300 INFO L82 PathProgramCache]: Analyzing trace with hash -727688960, now seen corresponding path program 1 times [2020-10-29 06:36:57,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:36:57,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89589948] [2020-10-29 06:36:57,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:36:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:36:57,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:57,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:36:59,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:00,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:00,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-29 06:37:00,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:00,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2787 [2020-10-29 06:37:00,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:00,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:00,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:37:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 06:37:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:00,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:00,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:00,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:00,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:00,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:00,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:00,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:37:00,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 06:37:00,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:00,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:37:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:37:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:00,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:00,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:00,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:37:00,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 06:37:00,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:00,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:37:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:00,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-29 06:37:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:00,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:00,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:00,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:00,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:00,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 06:37:00,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:00,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:00,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:37:00,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:00,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 226 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 06:37:00,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89589948] [2020-10-29 06:37:00,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:00,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:00,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541555180] [2020-10-29 06:37:00,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:00,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:00,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:00,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:00,980 INFO L87 Difference]: Start difference. First operand 2673 states and 3093 transitions. Second operand 7 states. [2020-10-29 06:37:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:03,148 INFO L93 Difference]: Finished difference Result 5501 states and 6389 transitions. [2020-10-29 06:37:03,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:37:03,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 375 [2020-10-29 06:37:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:03,163 INFO L225 Difference]: With dead ends: 5501 [2020-10-29 06:37:03,164 INFO L226 Difference]: Without dead ends: 2977 [2020-10-29 06:37:03,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 06:37:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2020-10-29 06:37:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2965. [2020-10-29 06:37:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2965 states. [2020-10-29 06:37:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 3404 transitions. [2020-10-29 06:37:03,266 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 3404 transitions. Word has length 375 [2020-10-29 06:37:03,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:03,267 INFO L481 AbstractCegarLoop]: Abstraction has 2965 states and 3404 transitions. [2020-10-29 06:37:03,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 3404 transitions. [2020-10-29 06:37:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-10-29 06:37:03,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:03,277 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:37:03,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:37:03,277 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:03,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:03,278 INFO L82 PathProgramCache]: Analyzing trace with hash -568613776, now seen corresponding path program 1 times [2020-10-29 06:37:03,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:03,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188426137] [2020-10-29 06:37:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:03,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:04,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:04,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 395 [2020-10-29 06:37:04,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1441 [2020-10-29 06:37:04,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:04,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-29 06:37:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 06:37:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:04,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:04,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:04,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:37:04,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:04,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:04,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:04,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:05,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:05,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:37:05,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 06:37:05,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:05,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:05,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:05,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:05,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:05,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:05,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:37:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:05,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:05,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:37:05,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 06:37:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:05,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:05,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:37:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:05,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:05,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:37:05,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-29 06:37:05,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188426137] [2020-10-29 06:37:05,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:05,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:37:05,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842932271] [2020-10-29 06:37:05,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:05,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:05,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:05,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:05,396 INFO L87 Difference]: Start difference. First operand 2965 states and 3404 transitions. Second operand 5 states. [2020-10-29 06:37:07,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:07,059 INFO L93 Difference]: Finished difference Result 6073 states and 7132 transitions. [2020-10-29 06:37:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:07,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 379 [2020-10-29 06:37:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:07,074 INFO L225 Difference]: With dead ends: 6073 [2020-10-29 06:37:07,074 INFO L226 Difference]: Without dead ends: 3257 [2020-10-29 06:37:07,081 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 06:37:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2020-10-29 06:37:07,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 3114. [2020-10-29 06:37:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3114 states. [2020-10-29 06:37:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 3589 transitions. [2020-10-29 06:37:07,170 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 3589 transitions. Word has length 379 [2020-10-29 06:37:07,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:07,171 INFO L481 AbstractCegarLoop]: Abstraction has 3114 states and 3589 transitions. [2020-10-29 06:37:07,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:07,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 3589 transitions. [2020-10-29 06:37:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-29 06:37:07,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:07,179 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2020-10-29 06:37:07,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:37:07,179 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:07,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1211732460, now seen corresponding path program 1 times [2020-10-29 06:37:07,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:07,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137368807] [2020-10-29 06:37:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:07,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:07,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-29 06:37:09,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2587 [2020-10-29 06:37:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:37:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 06:37:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:09,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:09,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:09,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:09,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:09,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:37:09,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:09,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:09,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:09,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:09,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:10,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:10,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:10,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:10,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:37:10,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 06:37:10,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:10,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:10,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:10,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:37:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:10,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:10,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:10,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:37:10,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:10,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 06:37:10,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:10,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:10,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:10,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:10,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 06:37:10,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:10,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:37:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:10,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:10,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:10,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:37:10,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-29 06:37:10,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:10,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:37:10,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 337 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 06:37:10,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137368807] [2020-10-29 06:37:10,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:10,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:10,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485852725] [2020-10-29 06:37:10,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:10,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:10,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:10,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:10,488 INFO L87 Difference]: Start difference. First operand 3114 states and 3589 transitions. Second operand 7 states. [2020-10-29 06:37:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:12,703 INFO L93 Difference]: Finished difference Result 6947 states and 8089 transitions. [2020-10-29 06:37:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:37:12,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 380 [2020-10-29 06:37:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:12,739 INFO L225 Difference]: With dead ends: 6947 [2020-10-29 06:37:12,739 INFO L226 Difference]: Without dead ends: 3982 [2020-10-29 06:37:12,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:37:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2020-10-29 06:37:12,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3694. [2020-10-29 06:37:12,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2020-10-29 06:37:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4309 transitions. [2020-10-29 06:37:12,867 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4309 transitions. Word has length 380 [2020-10-29 06:37:12,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:12,868 INFO L481 AbstractCegarLoop]: Abstraction has 3694 states and 4309 transitions. [2020-10-29 06:37:12,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4309 transitions. [2020-10-29 06:37:12,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-10-29 06:37:12,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:12,878 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:37:12,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 06:37:12,879 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:12,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1711397240, now seen corresponding path program 1 times [2020-10-29 06:37:12,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:12,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960474677] [2020-10-29 06:37:12,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:13,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:13,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:14,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:14,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 410 [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1115 [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-29 06:37:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 06:37:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:14,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:14,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:14,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:14,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:14,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:37:14,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 06:37:14,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:14,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:14,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:37:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:14,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:14,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:37:14,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:14,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 06:37:14,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:14,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:14,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:14,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:14,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:14,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:14,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-29 06:37:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:14,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:14,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:14,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:14,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 06:37:14,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:14,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 06:37:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-29 06:37:14,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960474677] [2020-10-29 06:37:14,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:14,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:37:14,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015523071] [2020-10-29 06:37:14,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:14,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:14,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:14,750 INFO L87 Difference]: Start difference. First operand 3694 states and 4309 transitions. Second operand 5 states. [2020-10-29 06:37:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:16,426 INFO L93 Difference]: Finished difference Result 7239 states and 8461 transitions. [2020-10-29 06:37:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:16,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 394 [2020-10-29 06:37:16,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:16,441 INFO L225 Difference]: With dead ends: 7239 [2020-10-29 06:37:16,441 INFO L226 Difference]: Without dead ends: 3694 [2020-10-29 06:37:16,451 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 06:37:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2020-10-29 06:37:16,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3549. [2020-10-29 06:37:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2020-10-29 06:37:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 3957 transitions. [2020-10-29 06:37:16,552 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 3957 transitions. Word has length 394 [2020-10-29 06:37:16,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:16,553 INFO L481 AbstractCegarLoop]: Abstraction has 3549 states and 3957 transitions. [2020-10-29 06:37:16,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:16,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 3957 transitions. [2020-10-29 06:37:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2020-10-29 06:37:16,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:16,564 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 06:37:16,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 06:37:16,564 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:16,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1916120148, now seen corresponding path program 1 times [2020-10-29 06:37:16,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:16,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995495842] [2020-10-29 06:37:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:16,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:16,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:18,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2489 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 06:37:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:19,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:19,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 06:37:19,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:19,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:19,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:19,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:37:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:19,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 06:37:19,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:19,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 06:37:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 06:37:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 06:37:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:37:19,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 06:37:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:37:19,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-29 06:37:19,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995495842] [2020-10-29 06:37:19,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:19,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:19,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992835351] [2020-10-29 06:37:19,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:19,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:19,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:19,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:19,866 INFO L87 Difference]: Start difference. First operand 3549 states and 3957 transitions. Second operand 7 states. [2020-10-29 06:37:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:21,901 INFO L93 Difference]: Finished difference Result 7247 states and 8137 transitions. [2020-10-29 06:37:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:37:21,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 419 [2020-10-29 06:37:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:21,916 INFO L225 Difference]: With dead ends: 7247 [2020-10-29 06:37:21,916 INFO L226 Difference]: Without dead ends: 3847 [2020-10-29 06:37:21,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:37:21,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2020-10-29 06:37:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3696. [2020-10-29 06:37:22,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3696 states. [2020-10-29 06:37:22,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 4120 transitions. [2020-10-29 06:37:22,015 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 4120 transitions. Word has length 419 [2020-10-29 06:37:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:22,016 INFO L481 AbstractCegarLoop]: Abstraction has 3696 states and 4120 transitions. [2020-10-29 06:37:22,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 4120 transitions. [2020-10-29 06:37:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-10-29 06:37:22,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:22,027 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:22,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 06:37:22,028 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:22,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1903168092, now seen corresponding path program 1 times [2020-10-29 06:37:22,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:22,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700603409] [2020-10-29 06:37:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 468 [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 412 [2020-10-29 06:37:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 06:37:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:22,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:22,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:22,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:22,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 06:37:22,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:22,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:22,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:22,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:22,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:22,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:37:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:22,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:23,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:23,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:23,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-29 06:37:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:23,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:23,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:37:23,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 06:37:23,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:23,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 06:37:23,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-29 06:37:23,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700603409] [2020-10-29 06:37:23,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:23,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:37:23,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158588180] [2020-10-29 06:37:23,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:23,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:23,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:23,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:23,244 INFO L87 Difference]: Start difference. First operand 3696 states and 4120 transitions. Second operand 5 states. [2020-10-29 06:37:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:24,887 INFO L93 Difference]: Finished difference Result 7383 states and 8231 transitions. [2020-10-29 06:37:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:24,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 452 [2020-10-29 06:37:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:24,889 INFO L225 Difference]: With dead ends: 7383 [2020-10-29 06:37:24,890 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:37:24,900 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 06:37:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:37:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:37:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:37:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:37:24,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 452 [2020-10-29 06:37:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:24,902 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:37:24,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:24,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:37:24,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:37:24,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 06:37:24,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:37:25,702 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 214 [2020-10-29 06:37:26,712 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 214 [2020-10-29 06:37:27,119 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 36 [2020-10-29 06:37:27,808 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 41 [2020-10-29 06:37:29,004 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 236 DAG size of output: 53 [2020-10-29 06:37:29,766 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 41 [2020-10-29 06:37:29,773 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:37:29,773 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:37:29,774 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 06:37:29,774 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:37:29,774 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:37:29,775 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:37:29,775 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:37:29,775 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:37:29,775 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:37:29,775 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:37:29,776 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:37:29,776 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:37:29,776 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:37:29,777 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,778 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,779 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,779 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,779 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:37:29,779 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:37:29,779 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:37:29,779 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:37:29,780 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:37:29,780 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:37:29,780 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:37:29,780 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:37:29,780 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:37:29,781 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,782 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L270 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (not (= 2 |old(~a10~0)|))) (.cse1 (= 6 |old(~a19~0)|)) (.cse2 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 (not (= 7 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse1 (not (= |old(~a10~0)| 1))) (or (not (<= (+ |old(~a1~0)| 551894) 0)) .cse2) (not (<= 3 |old(~a10~0)|)) (or .cse1 .cse2) (not (= 8 |old(~a19~0)|)))) [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L147-1(line 147) no Hoare annotation was computed. [2020-10-29 06:37:29,783 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,784 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:37:29,785 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:37:29,786 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,787 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:37:29,788 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,789 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse5 (= ~a1~0 |old(~a1~0)|)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (not (= 2 |old(~a10~0)|))) (.cse2 (and (not (= ~a19~0 6)) .cse5 .cse6 .cse7)) (.cse3 (= 6 |old(~a19~0)|)) (.cse0 (and .cse5 .cse6 .cse7)) (.cse4 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 (not (= 9 |old(~a19~0)|)) .cse1) (or .cse2 (not (= 8 |old(~a19~0)|))) (or .cse2 .cse1 (not (= 7 |old(~a19~0)|))) (or .cse2 .cse3 (not (= |old(~a10~0)| 1))) (or .cse0 (not (<= 3 |old(~a10~0)|))) (or .cse3 .cse4 (and (= ~a10~0 0) .cse5 .cse6)) (or (not (<= (+ |old(~a1~0)| 551894) 0)) .cse0 .cse4)))) [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:37:29,790 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,791 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:37:29,792 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:37:29,793 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,794 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:37:29,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:37:29,795 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-29 06:37:29,795 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:37:29,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:37:29,795 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-29 06:37:29,795 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:37:29,795 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse1 (not (= ~a19~0 6))) (.cse0 (= ~a10~0 2)) (.cse2 (= ~a10~0 0))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (<= 3 ~a10~0) (and (= 7 ~a19~0) .cse0) (and (= ~a10~0 1) .cse1) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse2 .cse1) (not (= 0 |old(~a10~0)|)) (and .cse0 (= ~a19~0 |old(~a19~0)|)) (and .cse2 (<= (+ ~a1~0 551894) 0)))) [2020-10-29 06:37:29,795 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:37:29,796 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:37:29,796 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse1 (not (= ~a19~0 6))) (.cse0 (= ~a10~0 2)) (.cse2 (= ~a10~0 0))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (<= 3 ~a10~0) (and (= 7 ~a19~0) .cse0) (and (= ~a10~0 1) .cse1) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse2 .cse1) (not (= 0 |old(~a10~0)|)) (and .cse0 (= ~a19~0 |old(~a19~0)|)) (and .cse2 (<= (+ ~a1~0 551894) 0)))) [2020-10-29 06:37:29,796 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:37:29,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:37:29 BoogieIcfgContainer [2020-10-29 06:37:29,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:37:29,820 INFO L168 Benchmark]: Toolchain (without parser) took 106899.78 ms. Allocated memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: 869.3 MB). Free memory was 127.8 MB in the beginning and 894.5 MB in the end (delta: -766.7 MB). Peak memory consumption was 611.7 MB. Max. memory is 8.0 GB. [2020-10-29 06:37:29,821 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 154.1 MB. Free memory was 127.0 MB in the beginning and 126.9 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:37:29,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.55 ms. Allocated memory is still 154.1 MB. Free memory was 127.0 MB in the beginning and 132.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-10-29 06:37:29,822 INFO L168 Benchmark]: Boogie Preprocessor took 145.83 ms. Allocated memory is still 154.1 MB. Free memory was 132.7 MB in the beginning and 127.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:37:29,823 INFO L168 Benchmark]: RCFGBuilder took 1686.03 ms. Allocated memory is still 154.1 MB. Free memory was 127.6 MB in the beginning and 109.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2020-10-29 06:37:29,824 INFO L168 Benchmark]: TraceAbstraction took 104265.16 ms. Allocated memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: 869.3 MB). Free memory was 109.4 MB in the beginning and 894.5 MB in the end (delta: -785.0 MB). Peak memory consumption was 592.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:37:29,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 154.1 MB. Free memory was 127.0 MB in the beginning and 126.9 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 788.55 ms. Allocated memory is still 154.1 MB. Free memory was 127.0 MB in the beginning and 132.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.83 ms. Allocated memory is still 154.1 MB. Free memory was 132.7 MB in the beginning and 127.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1686.03 ms. Allocated memory is still 154.1 MB. Free memory was 127.6 MB in the beginning and 109.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 104265.16 ms. Allocated memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: 869.3 MB). Free memory was 109.4 MB in the beginning and 894.5 MB in the end (delta: -785.0 MB). Peak memory consumption was 592.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((a19 == 8 || !(23 <= \old(a1))) || 3 <= a10) || (7 == a19 && a10 == 2)) || (a10 == 1 && !(a19 == 6))) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || (a10 == 0 && !(a19 == 6))) || !(0 == \old(a10))) || (a10 == 2 && a19 == \old(a19))) || (a10 == 0 && a1 + 551894 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 99.2s, OverallIterations: 17, TraceHistogramMax: 4, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 513 SDtfs, 6707 SDslu, 621 SDs, 0 SdLazy, 17092 SolverSat, 2347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3696occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 1628 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 559 PreInvPairs, 631 NumberOfFragments, 422 HoareAnnotationTreeSize, 559 FomulaSimplifications, 73910 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14010 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 56.5s InterpolantComputationTime, 5232 NumberOfCodeBlocks, 5232 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5215 ConstructedInterpolants, 0 QuantifiedInterpolants, 3762266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 4784/4905 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...