/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:00:50,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:00:50,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:00:50,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:00:50,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:00:50,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:00:50,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:00:50,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:00:50,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:00:50,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:00:50,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:00:50,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:00:50,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:00:50,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:00:50,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:00:50,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:00:50,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:00:50,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:00:50,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:00:50,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:00:50,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:00:50,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:00:50,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:00:50,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:00:50,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:00:50,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:00:50,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:00:50,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:00:50,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:00:50,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:00:50,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:00:50,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:00:50,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:00:50,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:00:50,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:00:50,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:00:50,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:00:50,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:00:50,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:00:50,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:00:50,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:00:50,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 12:00:50,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:00:50,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:00:50,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:00:50,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:00:50,522 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:00:50,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:00:50,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:00:50,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:00:50,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:00:50,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:00:50,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:00:50,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:00:50,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:00:50,525 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:00:50,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:00:50,525 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:00:50,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:00:50,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:00:50,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:00:50,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:00:50,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:00:50,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:00:50,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:00:50,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:00:50,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:00:50,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:00:50,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:00:50,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:00:50,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:00:50,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:00:50,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:00:50,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:00:50,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:00:50,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:00:50,972 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:00:50,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-10-28 12:00:51,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a350f48c2/ae537e7703694a4abe030e36777bc1b2/FLAG2660ae547 [2020-10-28 12:00:51,868 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:00:51,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-10-28 12:00:51,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a350f48c2/ae537e7703694a4abe030e36777bc1b2/FLAG2660ae547 [2020-10-28 12:00:52,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a350f48c2/ae537e7703694a4abe030e36777bc1b2 [2020-10-28 12:00:52,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:00:52,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:00:52,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:52,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:00:52,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:00:52,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14558c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52, skipping insertion in model container [2020-10-28 12:00:52,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:00:52,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:00:52,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:52,649 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:00:52,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:52,870 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:00:52,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52 WrapperNode [2020-10-28 12:00:52,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:52,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:00:52,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:00:52,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:00:52,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:52,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:53,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... [2020-10-28 12:00:53,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:00:53,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:00:53,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:00:53,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:00:53,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:00:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:00:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:00:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:00:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:00:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:00:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:00:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:00:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:00:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:00:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:00:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:00:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:00:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:00:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:00:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:00:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:00:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:00:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:00:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:00:54,828 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:00:54,828 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:00:54,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:54 BoogieIcfgContainer [2020-10-28 12:00:54,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:00:54,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:00:54,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:00:54,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:00:54,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:00:52" (1/3) ... [2020-10-28 12:00:54,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dd1ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:54, skipping insertion in model container [2020-10-28 12:00:54,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:52" (2/3) ... [2020-10-28 12:00:54,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dd1ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:54, skipping insertion in model container [2020-10-28 12:00:54,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:54" (3/3) ... [2020-10-28 12:00:54,840 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-10-28 12:00:54,852 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:00:54,858 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:00:54,871 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:00:54,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:00:54,900 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:00:54,900 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:00:54,900 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:00:54,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:00:54,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:00:54,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:00:54,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:00:54,925 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 12:00:54,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-28 12:00:54,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:54,934 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] [2020-10-28 12:00:54,935 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:54,941 INFO L82 PathProgramCache]: Analyzing trace with hash 647699858, now seen corresponding path program 1 times [2020-10-28 12:00:54,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:54,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081045156] [2020-10-28 12:00:54,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:55,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:55,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:55,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 12:00:55,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-28 12:00:55,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:55,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 12:00:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 12:00:55,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:56,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:56,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:56,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:56,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:00:56,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:56,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:56,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:56,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081045156] [2020-10-28 12:00:56,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:56,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:00:56,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532713312] [2020-10-28 12:00:56,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:00:56,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:56,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:00:56,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:00:56,077 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 12:00:57,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:57,970 INFO L93 Difference]: Finished difference Result 593 states and 1011 transitions. [2020-10-28 12:00:57,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:57,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-28 12:00:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:57,992 INFO L225 Difference]: With dead ends: 593 [2020-10-28 12:00:57,993 INFO L226 Difference]: Without dead ends: 297 [2020-10-28 12:00:58,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-10-28 12:00:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2020-10-28 12:00:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-28 12:00:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 408 transitions. [2020-10-28 12:00:58,079 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 408 transitions. Word has length 45 [2020-10-28 12:00:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:58,080 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 408 transitions. [2020-10-28 12:00:58,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:00:58,080 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 408 transitions. [2020-10-28 12:00:58,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-28 12:00:58,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:58,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:58,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:00:58,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:58,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:58,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1878344367, now seen corresponding path program 1 times [2020-10-28 12:00:58,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:58,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262783313] [2020-10-28 12:00:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:58,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:58,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:58,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:58,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:00:58,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-28 12:00:58,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:58,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:00:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 12:00:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:00:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:59,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:59,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:59,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:00:59,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:59,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:59,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:59,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:59,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:59,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:59,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:00:59,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:00:59,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:59,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:00:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:59,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262783313] [2020-10-28 12:00:59,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:59,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:00:59,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319722197] [2020-10-28 12:00:59,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:00:59,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:59,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:00:59,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:59,344 INFO L87 Difference]: Start difference. First operand 297 states and 408 transitions. Second operand 5 states. [2020-10-28 12:01:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:01,157 INFO L93 Difference]: Finished difference Result 590 states and 858 transitions. [2020-10-28 12:01:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:01,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-28 12:01:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:01,172 INFO L225 Difference]: With dead ends: 590 [2020-10-28 12:01:01,172 INFO L226 Difference]: Without dead ends: 442 [2020-10-28 12:01:01,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:01,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-28 12:01:01,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-28 12:01:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-28 12:01:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 587 transitions. [2020-10-28 12:01:01,215 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 587 transitions. Word has length 115 [2020-10-28 12:01:01,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:01,216 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 587 transitions. [2020-10-28 12:01:01,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 587 transitions. [2020-10-28 12:01:01,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-28 12:01:01,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:01,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:01,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:01:01,221 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:01,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:01,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1927318583, now seen corresponding path program 1 times [2020-10-28 12:01:01,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:01,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86959180] [2020-10-28 12:01:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:01,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:02,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:01:02,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:02,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1079 [2020-10-28 12:01:02,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:02,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:02,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:02,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:01:02,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:01:02,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:02,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:02,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:02,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:02,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:01:02,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:02,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:01:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:02,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:02,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:02,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:01:02,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:01:02,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:02,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:01:02,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:02,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86959180] [2020-10-28 12:01:02,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:01:02,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:01:02,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339970701] [2020-10-28 12:01:02,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:02,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:02,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:02,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:02,752 INFO L87 Difference]: Start difference. First operand 442 states and 587 transitions. Second operand 7 states. [2020-10-28 12:01:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:04,857 INFO L93 Difference]: Finished difference Result 1041 states and 1430 transitions. [2020-10-28 12:01:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:01:04,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2020-10-28 12:01:04,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:04,866 INFO L225 Difference]: With dead ends: 1041 [2020-10-28 12:01:04,866 INFO L226 Difference]: Without dead ends: 605 [2020-10-28 12:01:04,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-28 12:01:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 593. [2020-10-28 12:01:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-28 12:01:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 738 transitions. [2020-10-28 12:01:04,940 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 738 transitions. Word has length 119 [2020-10-28 12:01:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:04,949 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 738 transitions. [2020-10-28 12:01:04,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 738 transitions. [2020-10-28 12:01:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 12:01:04,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:04,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:04,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:01:04,959 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:04,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:04,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1757689485, now seen corresponding path program 1 times [2020-10-28 12:01:04,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:04,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494319448] [2020-10-28 12:01:04,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 12:01:05,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-28 12:01:05,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:01:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 12:01:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:05,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:05,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:01:05,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:01:05,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:01:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:05,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494319448] [2020-10-28 12:01:05,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:05,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:05,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171584687] [2020-10-28 12:01:05,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:05,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:05,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:05,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:05,759 INFO L87 Difference]: Start difference. First operand 593 states and 738 transitions. Second operand 5 states. [2020-10-28 12:01:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:07,549 INFO L93 Difference]: Finished difference Result 1484 states and 1925 transitions. [2020-10-28 12:01:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:07,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-28 12:01:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:07,556 INFO L225 Difference]: With dead ends: 1484 [2020-10-28 12:01:07,556 INFO L226 Difference]: Without dead ends: 1040 [2020-10-28 12:01:07,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2020-10-28 12:01:07,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2020-10-28 12:01:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-10-28 12:01:07,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1269 transitions. [2020-10-28 12:01:07,600 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1269 transitions. Word has length 124 [2020-10-28 12:01:07,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:07,601 INFO L481 AbstractCegarLoop]: Abstraction has 1040 states and 1269 transitions. [2020-10-28 12:01:07,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1269 transitions. [2020-10-28 12:01:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-28 12:01:07,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:07,605 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:07,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:01:07,606 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:07,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:07,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1477115543, now seen corresponding path program 1 times [2020-10-28 12:01:07,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:07,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348330932] [2020-10-28 12:01:07,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:07,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:07,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:08,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:09,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:09,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:01:09,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:09,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1817 [2020-10-28 12:01:09,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:09,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:09,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:01:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:01:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:01:09,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:09,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:09,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:09,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:09,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:09,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:01:09,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:09,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:09,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:01:09,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:09,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:09,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:09,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:09,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 12:01:09,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 12:01:09,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:09,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 12:01:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:10,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348330932] [2020-10-28 12:01:10,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:01:10,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:01:10,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509633891] [2020-10-28 12:01:10,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:10,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:10,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:10,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:10,088 INFO L87 Difference]: Start difference. First operand 1040 states and 1269 transitions. Second operand 7 states. [2020-10-28 12:01:12,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:12,108 INFO L93 Difference]: Finished difference Result 2700 states and 3495 transitions. [2020-10-28 12:01:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:12,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-10-28 12:01:12,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:12,129 INFO L225 Difference]: With dead ends: 2700 [2020-10-28 12:01:12,129 INFO L226 Difference]: Without dead ends: 1809 [2020-10-28 12:01:12,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2020-10-28 12:01:12,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1493. [2020-10-28 12:01:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2020-10-28 12:01:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1849 transitions. [2020-10-28 12:01:12,218 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1849 transitions. Word has length 167 [2020-10-28 12:01:12,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:12,219 INFO L481 AbstractCegarLoop]: Abstraction has 1493 states and 1849 transitions. [2020-10-28 12:01:12,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1849 transitions. [2020-10-28 12:01:12,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-28 12:01:12,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:12,225 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:01:12,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:01:12,226 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:12,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1258893092, now seen corresponding path program 1 times [2020-10-28 12:01:12,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:12,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719562300] [2020-10-28 12:01:12,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:12,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:12,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:13,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-28 12:01:14,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1766 [2020-10-28 12:01:14,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 12:01:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:14,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:01:14,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:14,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:01:14,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:01:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:14,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:01:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:14,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:14,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:14,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 12:01:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:14,567 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:01:14,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719562300] [2020-10-28 12:01:14,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:14,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:14,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548118835] [2020-10-28 12:01:14,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:14,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:14,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:14,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:14,574 INFO L87 Difference]: Start difference. First operand 1493 states and 1849 transitions. Second operand 7 states. [2020-10-28 12:01:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:16,420 INFO L93 Difference]: Finished difference Result 3151 states and 3930 transitions. [2020-10-28 12:01:16,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:01:16,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-28 12:01:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:16,436 INFO L225 Difference]: With dead ends: 3151 [2020-10-28 12:01:16,436 INFO L226 Difference]: Without dead ends: 1807 [2020-10-28 12:01:16,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:16,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-10-28 12:01:16,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1791. [2020-10-28 12:01:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1791 states. [2020-10-28 12:01:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2089 transitions. [2020-10-28 12:01:16,501 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2089 transitions. Word has length 197 [2020-10-28 12:01:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:16,502 INFO L481 AbstractCegarLoop]: Abstraction has 1791 states and 2089 transitions. [2020-10-28 12:01:16,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2089 transitions. [2020-10-28 12:01:16,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-28 12:01:16,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:16,507 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:01:16,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:01:16,508 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:16,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1184972222, now seen corresponding path program 1 times [2020-10-28 12:01:16,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:16,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256807285] [2020-10-28 12:01:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:16,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:16,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:17,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:17,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-28 12:01:17,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-28 12:01:17,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:17,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:01:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 12:01:17,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:17,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:17,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:17,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:17,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:17,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:01:17,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:17,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:17,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:17,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:17,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:01:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:17,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 12:01:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:18,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:01:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 12:01:18,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:18,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:01:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:01:18,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256807285] [2020-10-28 12:01:18,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:18,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:18,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784433422] [2020-10-28 12:01:18,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:18,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:18,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:18,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:18,190 INFO L87 Difference]: Start difference. First operand 1791 states and 2089 transitions. Second operand 7 states. [2020-10-28 12:01:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:23,068 INFO L93 Difference]: Finished difference Result 4736 states and 5603 transitions. [2020-10-28 12:01:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:23,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-28 12:01:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:23,081 INFO L225 Difference]: With dead ends: 4736 [2020-10-28 12:01:23,081 INFO L226 Difference]: Without dead ends: 2218 [2020-10-28 12:01:23,088 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 [2020-10-28 12:01:23,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2020-10-28 12:01:23,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1928. [2020-10-28 12:01:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1928 states. [2020-10-28 12:01:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2227 transitions. [2020-10-28 12:01:23,153 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2227 transitions. Word has length 209 [2020-10-28 12:01:23,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:23,154 INFO L481 AbstractCegarLoop]: Abstraction has 1928 states and 2227 transitions. [2020-10-28 12:01:23,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:23,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2227 transitions. [2020-10-28 12:01:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-28 12:01:23,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:23,159 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:01:23,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:01:23,159 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:23,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1936966922, now seen corresponding path program 1 times [2020-10-28 12:01:23,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:23,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234265947] [2020-10-28 12:01:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-28 12:01:23,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-28 12:01:23,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-28 12:01:23,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 12:01:23,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:01:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:23,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:01:23,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:23,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:01:23,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-28 12:01:24,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234265947] [2020-10-28 12:01:24,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:24,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:24,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220222701] [2020-10-28 12:01:24,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:24,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:24,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:24,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:24,133 INFO L87 Difference]: Start difference. First operand 1928 states and 2227 transitions. Second operand 5 states. [2020-10-28 12:01:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:25,896 INFO L93 Difference]: Finished difference Result 3995 states and 4680 transitions. [2020-10-28 12:01:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:25,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 245 [2020-10-28 12:01:25,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:25,910 INFO L225 Difference]: With dead ends: 3995 [2020-10-28 12:01:25,910 INFO L226 Difference]: Without dead ends: 2216 [2020-10-28 12:01:25,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2020-10-28 12:01:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2071. [2020-10-28 12:01:25,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2071 states. [2020-10-28 12:01:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 2376 transitions. [2020-10-28 12:01:25,983 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 2376 transitions. Word has length 245 [2020-10-28 12:01:25,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:25,984 INFO L481 AbstractCegarLoop]: Abstraction has 2071 states and 2376 transitions. [2020-10-28 12:01:25,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:25,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 2376 transitions. [2020-10-28 12:01:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-28 12:01:25,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:25,992 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:25,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:01:25,993 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:25,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:25,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1752418917, now seen corresponding path program 1 times [2020-10-28 12:01:25,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:25,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478536075] [2020-10-28 12:01:25,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:26,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:26,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:27,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:28,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:29,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:29,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-28 12:01:29,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:29,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3596 [2020-10-28 12:01:29,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:29,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-28 12:01:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 12:01:29,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:29,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:29,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:29,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:29,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:29,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:01:29,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:29,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:29,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:29,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:29,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:29,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:29,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:29,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:29,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:01:29,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:29,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:29,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:29,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:29,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:29,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:30,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 12:01:30,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:30,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:01:30,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:30,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 12:01:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:30,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-28 12:01:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:30,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:30,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:30,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 12:01:30,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-28 12:01:30,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478536075] [2020-10-28 12:01:30,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:30,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:30,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545207100] [2020-10-28 12:01:30,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:30,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:30,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:30,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:30,346 INFO L87 Difference]: Start difference. First operand 2071 states and 2376 transitions. Second operand 7 states. [2020-10-28 12:01:32,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:32,586 INFO L93 Difference]: Finished difference Result 4150 states and 4805 transitions. [2020-10-28 12:01:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:32,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2020-10-28 12:01:32,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:32,600 INFO L225 Difference]: With dead ends: 4150 [2020-10-28 12:01:32,600 INFO L226 Difference]: Without dead ends: 2228 [2020-10-28 12:01:32,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:32,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-10-28 12:01:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2220. [2020-10-28 12:01:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2220 states. [2020-10-28 12:01:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2551 transitions. [2020-10-28 12:01:32,679 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2551 transitions. Word has length 319 [2020-10-28 12:01:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:32,680 INFO L481 AbstractCegarLoop]: Abstraction has 2220 states and 2551 transitions. [2020-10-28 12:01:32,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2551 transitions. [2020-10-28 12:01:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-28 12:01:32,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:32,689 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:32,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:01:32,689 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:32,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1409505583, now seen corresponding path program 1 times [2020-10-28 12:01:32,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:32,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635651571] [2020-10-28 12:01:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:32,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:32,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:33,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:37,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:37,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-28 12:01:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-28 12:01:37,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:37,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:01:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 12:01:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:37,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:37,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:37,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:37,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:01:37,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:37,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:37,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:37,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:37,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:38,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:38,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:38,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:38,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:01:38,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:38,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:38,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:01:38,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:01:38,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 12:01:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:38,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 12:01:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:38,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 12:01:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:38,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:38,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 199 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-28 12:01:38,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635651571] [2020-10-28 12:01:38,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:38,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:38,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332927415] [2020-10-28 12:01:38,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:38,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:38,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:38,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:38,652 INFO L87 Difference]: Start difference. First operand 2220 states and 2551 transitions. Second operand 7 states. [2020-10-28 12:01:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:40,745 INFO L93 Difference]: Finished difference Result 4597 states and 5290 transitions. [2020-10-28 12:01:40,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:01:40,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 329 [2020-10-28 12:01:40,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:40,759 INFO L225 Difference]: With dead ends: 4597 [2020-10-28 12:01:40,760 INFO L226 Difference]: Without dead ends: 2526 [2020-10-28 12:01:40,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:01:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2020-10-28 12:01:40,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2522. [2020-10-28 12:01:40,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2522 states. [2020-10-28 12:01:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 2872 transitions. [2020-10-28 12:01:40,836 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 2872 transitions. Word has length 329 [2020-10-28 12:01:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:40,837 INFO L481 AbstractCegarLoop]: Abstraction has 2522 states and 2872 transitions. [2020-10-28 12:01:40,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 2872 transitions. [2020-10-28 12:01:40,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-28 12:01:40,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:40,847 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:40,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:01:40,847 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:40,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:40,848 INFO L82 PathProgramCache]: Analyzing trace with hash -216825451, now seen corresponding path program 1 times [2020-10-28 12:01:40,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:40,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481135816] [2020-10-28 12:01:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:40,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:41,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:42,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:43,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:43,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-28 12:01:43,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2331 [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 12:01:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:43,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:43,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:43,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:43,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:01:43,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:43,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:43,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:43,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:43,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:43,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:43,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 12:01:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:43,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:43,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:01:43,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 12:01:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:43,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 12:01:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:43,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 12:01:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 12:01:43,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:43,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 12:01:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-28 12:01:43,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481135816] [2020-10-28 12:01:43,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:43,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:43,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077788229] [2020-10-28 12:01:43,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:43,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:43,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:43,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:43,935 INFO L87 Difference]: Start difference. First operand 2522 states and 2872 transitions. Second operand 7 states. [2020-10-28 12:01:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:46,378 INFO L93 Difference]: Finished difference Result 5789 states and 6677 transitions. [2020-10-28 12:01:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:01:46,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 348 [2020-10-28 12:01:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:46,395 INFO L225 Difference]: With dead ends: 5789 [2020-10-28 12:01:46,395 INFO L226 Difference]: Without dead ends: 3416 [2020-10-28 12:01:46,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:01:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2020-10-28 12:01:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 2971. [2020-10-28 12:01:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2971 states. [2020-10-28 12:01:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 3359 transitions. [2020-10-28 12:01:46,484 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 3359 transitions. Word has length 348 [2020-10-28 12:01:46,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:46,485 INFO L481 AbstractCegarLoop]: Abstraction has 2971 states and 3359 transitions. [2020-10-28 12:01:46,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 3359 transitions. [2020-10-28 12:01:46,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-28 12:01:46,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:46,495 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:46,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:01:46,496 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:46,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:46,496 INFO L82 PathProgramCache]: Analyzing trace with hash 128152693, now seen corresponding path program 1 times [2020-10-28 12:01:46,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:46,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672149552] [2020-10-28 12:01:46,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:46,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:46,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:47,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:48,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:48,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-28 12:01:48,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1928 [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 12:01:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:48,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:48,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:48,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:48,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:48,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:48,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:48,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:48,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:48,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:48,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 12:01:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:48,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:48,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:48,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 12:01:48,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 12:01:48,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:48,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 12:01:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:48,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-28 12:01:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:48,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:49,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 12:01:49,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-28 12:01:49,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672149552] [2020-10-28 12:01:49,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:49,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:49,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787117818] [2020-10-28 12:01:49,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:49,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:49,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:49,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:49,140 INFO L87 Difference]: Start difference. First operand 2971 states and 3359 transitions. Second operand 7 states. [2020-10-28 12:01:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:51,521 INFO L93 Difference]: Finished difference Result 6669 states and 7626 transitions. [2020-10-28 12:01:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:01:51,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-28 12:01:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:51,541 INFO L225 Difference]: With dead ends: 6669 [2020-10-28 12:01:51,542 INFO L226 Difference]: Without dead ends: 3847 [2020-10-28 12:01:51,549 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 [2020-10-28 12:01:51,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2020-10-28 12:01:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3551. [2020-10-28 12:01:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3551 states. [2020-10-28 12:01:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 4057 transitions. [2020-10-28 12:01:51,676 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 4057 transitions. Word has length 357 [2020-10-28 12:01:51,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:51,677 INFO L481 AbstractCegarLoop]: Abstraction has 3551 states and 4057 transitions. [2020-10-28 12:01:51,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 4057 transitions. [2020-10-28 12:01:51,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-28 12:01:51,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:51,691 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:01:51,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:01:51,691 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:51,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:51,692 INFO L82 PathProgramCache]: Analyzing trace with hash 435992315, now seen corresponding path program 1 times [2020-10-28 12:01:51,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:51,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622463772] [2020-10-28 12:01:51,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:52,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:52,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3142 [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:54,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:01:54,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-28 12:01:54,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:55,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:55,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:55,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:55,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:55,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:01:55,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:55,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:55,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:55,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:55,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:55,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:55,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:55,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:55,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:01:55,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:55,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:01:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:55,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:55,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:55,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:55,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:55,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:01:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:55,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 12:01:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:55,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:55,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:55,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 12:01:55,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-28 12:01:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:55,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 12:01:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 305 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-28 12:01:55,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622463772] [2020-10-28 12:01:55,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:55,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:55,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865871013] [2020-10-28 12:01:55,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:55,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:55,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:55,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:55,670 INFO L87 Difference]: Start difference. First operand 3551 states and 4057 transitions. Second operand 7 states. [2020-10-28 12:01:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:57,869 INFO L93 Difference]: Finished difference Result 7126 states and 8211 transitions. [2020-10-28 12:01:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:57,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 367 [2020-10-28 12:01:57,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:57,887 INFO L225 Difference]: With dead ends: 7126 [2020-10-28 12:01:57,887 INFO L226 Difference]: Without dead ends: 3724 [2020-10-28 12:01:57,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2020-10-28 12:01:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3694. [2020-10-28 12:01:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2020-10-28 12:01:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4101 transitions. [2020-10-28 12:01:57,995 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4101 transitions. Word has length 367 [2020-10-28 12:01:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:57,996 INFO L481 AbstractCegarLoop]: Abstraction has 3694 states and 4101 transitions. [2020-10-28 12:01:57,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4101 transitions. [2020-10-28 12:01:58,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-28 12:01:58,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:58,006 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:58,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:01:58,006 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:58,007 INFO L82 PathProgramCache]: Analyzing trace with hash -707855097, now seen corresponding path program 1 times [2020-10-28 12:01:58,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:58,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107645414] [2020-10-28 12:01:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:58,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:59,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:59,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 401 [2020-10-28 12:01:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:59,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1095 [2020-10-28 12:01:59,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:59,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 12:01:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 12:01:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:59,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:59,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:59,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:59,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:59,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:01:59,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:59,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:59,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:59,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 12:01:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:59,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:59,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:59,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:01:59,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:59,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:01:59,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:59,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:59,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-28 12:01:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:59,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:59,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 12:01:59,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 114 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-28 12:01:59,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107645414] [2020-10-28 12:01:59,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:59,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:59,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160928304] [2020-10-28 12:01:59,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:59,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:59,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:59,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:59,762 INFO L87 Difference]: Start difference. First operand 3694 states and 4101 transitions. Second operand 5 states. [2020-10-28 12:02:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:01,471 INFO L93 Difference]: Finished difference Result 7383 states and 8202 transitions. [2020-10-28 12:02:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:02:01,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 385 [2020-10-28 12:02:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:01,474 INFO L225 Difference]: With dead ends: 7383 [2020-10-28 12:02:01,474 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:02:01,487 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 [2020-10-28 12:02:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:02:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:02:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:02:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:02:01,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 385 [2020-10-28 12:02:01,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:01,488 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:02:01,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:02:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:02:01,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:02:01,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:02:01,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:02:01,845 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 120 [2020-10-28 12:02:02,607 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 120 [2020-10-28 12:02:02,962 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 41 [2020-10-28 12:02:03,352 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 43 [2020-10-28 12:02:04,603 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 185 DAG size of output: 51 [2020-10-28 12:02:04,990 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 43 [2020-10-28 12:02:04,994 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:02:04,994 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:02:04,995 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)|)) [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 12:02:04,995 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 12:02:04,996 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:02:04,997 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 12:02:04,998 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 12:02:04,999 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:02:05,000 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,001 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 12:02:05,002 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:02:05,003 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,004 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:02:05,005 INFO L270 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: (let ((.cse3 (not (<= (+ |old(~a1~0)| 75821) 0))) (.cse2 (not (= 9 |old(~a19~0)|))) (.cse4 (not (= |old(~a10~0)| 1))) (.cse1 (not (= 10 |old(~a19~0)|))) (.cse0 (not (= 0 |old(~a10~0)|))) (.cse5 (not (= 8 |old(~a19~0)|)))) (and (or .cse0 .cse1) (or .cse2 .cse0) (or .cse3 .cse1) (or .cse3 .cse0) (not (<= 2 |old(~a10~0)|)) (or .cse4 (not (= 7 |old(~a19~0)|))) (or .cse2 .cse4) (or .cse4 .cse1) (or .cse0 .cse5) (or (not (<= 331498 |old(~a1~0)|)) .cse5))) [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L120-1(line 120) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,006 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 12:02:05,007 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,008 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse6 (not (= 8 |old(~a19~0)|))) (.cse4 (not (= |old(~a10~0)| 1))) (.cse2 (not (= 10 |old(~a19~0)|))) (.cse1 (not (<= (+ |old(~a1~0)| 75821) 0))) (.cse3 (not (= 9 |old(~a19~0)|))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse5 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 2 |old(~a10~0)|))) (or .cse3 .cse4 .cse0) (or .cse4 .cse0 (not (= 7 |old(~a19~0)|))) (or .cse0 .cse5 .cse6) (or .cse0 .cse5 .cse2) (or (not (<= 331498 |old(~a1~0)|)) .cse0 .cse6) (or .cse4 .cse0 .cse2) (or .cse1 .cse0 .cse5) (or .cse3 .cse0 .cse5))) [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 12:02:05,009 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:02:05,010 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,011 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:02:05,012 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,013 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:02:05,014 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 12:02:05,014 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:02:05,014 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:02:05,014 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 12:02:05,014 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:02:05,014 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (= ~a19~0 10)) (.cse4 (<= (+ ~a1~0 75821) 0)) (.cse2 (= ~a19~0 8)) (.cse3 (= ~a10~0 0))) (or (and .cse0 .cse1) (and .cse2 (<= 331498 ~a1~0)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (<= 2 ~a10~0) (not (= 9 |old(~a19~0)|)) (and .cse0 (= 7 ~a19~0)) (and .cse3 .cse4) (and .cse0 (= ~a19~0 9)) (and .cse3 .cse1) (and .cse1 .cse4) (and .cse2 .cse3) (and .cse3 (= ~a19~0 |old(~a19~0)|)))) [2020-10-28 12:02:05,014 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 12:02:05,014 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 12:02:05,015 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (= ~a19~0 10)) (.cse4 (<= (+ ~a1~0 75821) 0)) (.cse2 (= ~a19~0 8)) (.cse3 (= ~a10~0 0))) (or (and .cse0 .cse1) (and .cse2 (<= 331498 ~a1~0)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (<= 2 ~a10~0) (not (= 9 |old(~a19~0)|)) (and .cse0 (= 7 ~a19~0)) (and .cse3 .cse4) (and .cse0 (= ~a19~0 9)) (and .cse3 .cse1) (and .cse1 .cse4) (and .cse2 .cse3) (and .cse3 (= ~a19~0 |old(~a19~0)|)))) [2020-10-28 12:02:05,015 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:02:05,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:02:05 BoogieIcfgContainer [2020-10-28 12:02:05,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:02:05,069 INFO L168 Benchmark]: Toolchain (without parser) took 72975.14 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 981.5 MB). Free memory was 124.6 MB in the beginning and 602.2 MB in the end (delta: -477.6 MB). Peak memory consumption was 504.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,069 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:02:05,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.96 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 131.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,071 INFO L168 Benchmark]: Boogie Preprocessor took 169.18 ms. Allocated memory is still 151.0 MB. Free memory was 131.2 MB in the beginning and 126.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,071 INFO L168 Benchmark]: RCFGBuilder took 1785.16 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,074 INFO L168 Benchmark]: TraceAbstraction took 70231.32 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 981.5 MB). Free memory was 115.7 MB in the beginning and 602.2 MB in the end (delta: -486.4 MB). Peak memory consumption was 495.6 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.96 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 131.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.18 ms. Allocated memory is still 151.0 MB. Free memory was 131.2 MB in the beginning and 126.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1785.16 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 70231.32 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 981.5 MB). Free memory was 115.7 MB in the beginning and 602.2 MB in the end (delta: -486.4 MB). Peak memory consumption was 495.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((((((a10 == 1 && a19 == 10) || (a19 == 8 && 331498 <= a1)) || !(0 == \old(a10))) || !(23 == \old(a1))) || 2 <= a10) || !(9 == \old(a19))) || (a10 == 1 && 7 == a19)) || (a10 == 0 && a1 + 75821 <= 0)) || (a10 == 1 && a19 == 9)) || (a10 == 0 && a19 == 10)) || (a19 == 10 && a1 + 75821 <= 0)) || (a19 == 8 && a10 == 0)) || (a10 == 0 && a19 == \old(a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.5s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 382 SDtfs, 4858 SDslu, 453 SDs, 0 SdLazy, 13065 SolverSat, 1482 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 23.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3694occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 1562 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 394 PreInvPairs, 458 NumberOfFragments, 543 HoareAnnotationTreeSize, 394 FomulaSimplifications, 13961 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5176 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 31.6s InterpolantComputationTime, 3326 NumberOfCodeBlocks, 3326 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3312 ConstructedInterpolants, 0 QuantifiedInterpolants, 1864566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 2735/2837 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...