/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=SHALLOWEST --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/Problem01_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:02,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:02,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:02,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:02,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:02,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:02,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:02,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:02,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:02,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:02,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:02,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:02,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:02,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:02,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:02,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:02,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:02,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:02,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:02,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:02,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:02,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:02,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:02,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:02,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:02,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:02,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:02,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:02,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:02,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:02,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:02,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:02,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:02,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:02,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:02,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:02,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:02,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:02,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:02,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:02,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:02,346 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 [2020-10-26 20:33:02,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:02,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:02,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:02,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:02,376 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:02,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:02,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:02,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:02,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:02,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:02,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:02,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:02,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:02,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:02,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:02,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:02,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:02,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:02,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:02,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:02,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:02,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:02,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:02,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:02,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:02,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:02,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:02,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:02,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:02,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:02,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:02,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:02,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:02,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:02,798 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:02,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label23.c [2020-10-26 20:33:02,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6912cf19/31bf427d2070406b8ebde1242cb534b7/FLAG1aa018815 [2020-10-26 20:33:03,631 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:03,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label23.c [2020-10-26 20:33:03,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6912cf19/31bf427d2070406b8ebde1242cb534b7/FLAG1aa018815 [2020-10-26 20:33:03,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6912cf19/31bf427d2070406b8ebde1242cb534b7 [2020-10-26 20:33:03,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:03,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:03,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:03,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:03,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:03,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:03" (1/1) ... [2020-10-26 20:33:03,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fdbbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:03, skipping insertion in model container [2020-10-26 20:33:03,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:03" (1/1) ... [2020-10-26 20:33:03,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:03,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:04,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:04,192 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:04,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:04,342 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:04,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04 WrapperNode [2020-10-26 20:33:04,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:04,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:04,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:04,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:04,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (1/1) ... [2020-10-26 20:33:04,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:04,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:04,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:04,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:04,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (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 [2020-10-26 20:33:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:04,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:06,058 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:06,058 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:06,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:06 BoogieIcfgContainer [2020-10-26 20:33:06,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:06,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:06,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:06,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:06,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:03" (1/3) ... [2020-10-26 20:33:06,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf5cccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:06, skipping insertion in model container [2020-10-26 20:33:06,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:04" (2/3) ... [2020-10-26 20:33:06,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf5cccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:06, skipping insertion in model container [2020-10-26 20:33:06,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:06" (3/3) ... [2020-10-26 20:33:06,071 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label23.c [2020-10-26 20:33:06,084 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:06,089 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:06,103 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:06,134 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:06,134 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:06,134 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:06,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:06,135 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:06,135 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:06,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:06,135 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:06,161 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:06,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 20:33:06,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:06,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:06,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:06,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1876009623, now seen corresponding path program 1 times [2020-10-26 20:33:06,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:06,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970758934] [2020-10-26 20:33:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:06,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:06,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:08,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:08,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-26 20:33:08,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:08,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1991 [2020-10-26 20:33:08,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-26 20:33:08,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:33:08,773 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:08,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:08,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:08,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:33:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:08,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970758934] [2020-10-26 20:33:08,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:08,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:33:08,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72245408] [2020-10-26 20:33:08,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:33:08,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:33:08,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:33:08,889 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-26 20:33:09,083 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:11,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:11,896 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-26 20:33:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:33:11,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-26 20:33:11,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:11,917 INFO L225 Difference]: With dead ends: 703 [2020-10-26 20:33:11,917 INFO L226 Difference]: Without dead ends: 424 [2020-10-26 20:33:11,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-26 20:33:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-26 20:33:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-26 20:33:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 580 transitions. [2020-10-26 20:33:12,018 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 580 transitions. Word has length 102 [2020-10-26 20:33:12,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:12,019 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 580 transitions. [2020-10-26 20:33:12,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:33:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 580 transitions. [2020-10-26 20:33:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-26 20:33:12,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:12,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:12,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:33:12,027 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:12,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1267081126, now seen corresponding path program 1 times [2020-10-26 20:33:12,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:12,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532781027] [2020-10-26 20:33:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-26 20:33:12,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-26 20:33:12,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:12,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:33:12,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-26 20:33:12,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:12,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:12,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:12,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:12,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:12,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:33:12,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:33:12,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:12,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532781027] [2020-10-26 20:33:12,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:12,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:12,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367273943] [2020-10-26 20:33:12,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:33:12,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:12,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:33:12,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:33:12,761 INFO L87 Difference]: Start difference. First operand 418 states and 580 transitions. Second operand 5 states. [2020-10-26 20:33:13,000 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:14,464 INFO L93 Difference]: Finished difference Result 1247 states and 1767 transitions. [2020-10-26 20:33:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:33:14,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-26 20:33:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:14,480 INFO L225 Difference]: With dead ends: 1247 [2020-10-26 20:33:14,481 INFO L226 Difference]: Without dead ends: 835 [2020-10-26 20:33:14,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:14,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-26 20:33:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 694. [2020-10-26 20:33:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-26 20:33:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 906 transitions. [2020-10-26 20:33:14,544 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 906 transitions. Word has length 113 [2020-10-26 20:33:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:14,545 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 906 transitions. [2020-10-26 20:33:14,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:33:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 906 transitions. [2020-10-26 20:33:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-26 20:33:14,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:14,560 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-26 20:33:14,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:33:14,560 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:14,561 INFO L82 PathProgramCache]: Analyzing trace with hash 337548793, now seen corresponding path program 1 times [2020-10-26 20:33:14,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:14,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129433859] [2020-10-26 20:33:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:14,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:14,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:15,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 20:33:16,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:16,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2271 [2020-10-26 20:33:16,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:33:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:17,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:33:17,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:17,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:33:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:17,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:33:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:33:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:33:17,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:17,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:33:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:33:17,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129433859] [2020-10-26 20:33:17,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:17,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:17,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178267359] [2020-10-26 20:33:17,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:17,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:17,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:17,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:17,221 INFO L87 Difference]: Start difference. First operand 694 states and 906 transitions. Second operand 7 states. [2020-10-26 20:33:19,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:19,115 INFO L93 Difference]: Finished difference Result 1952 states and 2634 transitions. [2020-10-26 20:33:19,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:19,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2020-10-26 20:33:19,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:19,126 INFO L225 Difference]: With dead ends: 1952 [2020-10-26 20:33:19,126 INFO L226 Difference]: Without dead ends: 1264 [2020-10-26 20:33:19,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-26 20:33:19,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1256. [2020-10-26 20:33:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-10-26 20:33:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1629 transitions. [2020-10-26 20:33:19,193 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1629 transitions. Word has length 128 [2020-10-26 20:33:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:19,193 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1629 transitions. [2020-10-26 20:33:19,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1629 transitions. [2020-10-26 20:33:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 20:33:19,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:19,200 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:19,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:33:19,201 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:19,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:19,201 INFO L82 PathProgramCache]: Analyzing trace with hash -83913651, now seen corresponding path program 1 times [2020-10-26 20:33:19,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:19,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408443717] [2020-10-26 20:33:19,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:19,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:19,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:21,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 20:33:21,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:21,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2589 [2020-10-26 20:33:21,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:33:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:21,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:21,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:21,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:21,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:21,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:21,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:21,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:22,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:22,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:22,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:33:22,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:22,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:22,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:22,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:22,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:33:22,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:22,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 20:33:22,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 20:33:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:33:22,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408443717] [2020-10-26 20:33:22,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:22,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:22,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313463992] [2020-10-26 20:33:22,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:22,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:22,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:22,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:22,263 INFO L87 Difference]: Start difference. First operand 1256 states and 1629 transitions. Second operand 8 states. [2020-10-26 20:33:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:23,919 INFO L93 Difference]: Finished difference Result 2649 states and 3440 transitions. [2020-10-26 20:33:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:33:23,920 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-10-26 20:33:23,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:23,931 INFO L225 Difference]: With dead ends: 2649 [2020-10-26 20:33:23,931 INFO L226 Difference]: Without dead ends: 1399 [2020-10-26 20:33:23,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:23,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2020-10-26 20:33:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1256. [2020-10-26 20:33:24,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-10-26 20:33:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1560 transitions. [2020-10-26 20:33:24,015 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1560 transitions. Word has length 138 [2020-10-26 20:33:24,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:24,016 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1560 transitions. [2020-10-26 20:33:24,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:24,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1560 transitions. [2020-10-26 20:33:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-26 20:33:24,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:24,024 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:24,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:33:24,024 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:24,025 INFO L82 PathProgramCache]: Analyzing trace with hash -733498542, now seen corresponding path program 1 times [2020-10-26 20:33:24,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:24,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749876709] [2020-10-26 20:33:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:28,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:29,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-26 20:33:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:33:29,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:33:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:29,251 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:29,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:29,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:29,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:29,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:29,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:33:29,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:29,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:29,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:29,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:29,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:29,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:29,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:33:29,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:29,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:29,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:29,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:29,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:29,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:29,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:33:29,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:29,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:29,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:29,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:29,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:33:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:29,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:29,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:29,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:33:29,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:29,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:33:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:33:29,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749876709] [2020-10-26 20:33:29,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:29,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:29,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495769645] [2020-10-26 20:33:29,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:29,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:29,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:29,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:29,541 INFO L87 Difference]: Start difference. First operand 1256 states and 1560 transitions. Second operand 7 states. [2020-10-26 20:33:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:31,465 INFO L93 Difference]: Finished difference Result 3519 states and 4518 transitions. [2020-10-26 20:33:31,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:31,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-26 20:33:31,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:31,480 INFO L225 Difference]: With dead ends: 3519 [2020-10-26 20:33:31,481 INFO L226 Difference]: Without dead ends: 2120 [2020-10-26 20:33:31,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:31,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-10-26 20:33:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1961. [2020-10-26 20:33:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-10-26 20:33:31,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2270 transitions. [2020-10-26 20:33:31,567 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2270 transitions. Word has length 153 [2020-10-26 20:33:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:31,567 INFO L481 AbstractCegarLoop]: Abstraction has 1961 states and 2270 transitions. [2020-10-26 20:33:31,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2270 transitions. [2020-10-26 20:33:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-26 20:33:31,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:31,574 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:33:31,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:33:31,574 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash 852854210, now seen corresponding path program 1 times [2020-10-26 20:33:31,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:31,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585954847] [2020-10-26 20:33:31,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-26 20:33:36,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:33:36,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:33:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:36,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:36,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:36,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:33:36,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:36,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:33:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:36,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:36,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:36,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:33:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:33:36,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:33:36,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:33:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 24 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-26 20:33:37,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585954847] [2020-10-26 20:33:37,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:37,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:37,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260850512] [2020-10-26 20:33:37,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:37,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:37,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:37,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:37,062 INFO L87 Difference]: Start difference. First operand 1961 states and 2270 transitions. Second operand 7 states. [2020-10-26 20:33:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:38,779 INFO L93 Difference]: Finished difference Result 4351 states and 5077 transitions. [2020-10-26 20:33:38,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:38,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-26 20:33:38,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:38,798 INFO L225 Difference]: With dead ends: 4351 [2020-10-26 20:33:38,798 INFO L226 Difference]: Without dead ends: 2396 [2020-10-26 20:33:38,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2020-10-26 20:33:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2249. [2020-10-26 20:33:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2249 states. [2020-10-26 20:33:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 2605 transitions. [2020-10-26 20:33:38,899 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 2605 transitions. Word has length 161 [2020-10-26 20:33:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:38,902 INFO L481 AbstractCegarLoop]: Abstraction has 2249 states and 2605 transitions. [2020-10-26 20:33:38,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 2605 transitions. [2020-10-26 20:33:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:33:38,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:38,910 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-26 20:33:38,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:33:38,910 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:38,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:38,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1134299548, now seen corresponding path program 1 times [2020-10-26 20:33:38,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:38,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363872524] [2020-10-26 20:33:38,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:38,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:43,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-26 20:33:43,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-26 20:33:43,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:43,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:43,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:33:43,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:33:44,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:44,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:44,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:44,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:44,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:44,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:44,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:33:44,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:33:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:44,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:33:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:33:44,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:33:44,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:33:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 68 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:33:44,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363872524] [2020-10-26 20:33:44,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:44,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:44,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702910294] [2020-10-26 20:33:44,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:44,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:44,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:44,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:44,375 INFO L87 Difference]: Start difference. First operand 2249 states and 2605 transitions. Second operand 7 states. [2020-10-26 20:33:45,703 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:33:46,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:46,154 INFO L93 Difference]: Finished difference Result 4649 states and 5401 transitions. [2020-10-26 20:33:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:33:46,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-26 20:33:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:46,167 INFO L225 Difference]: With dead ends: 4649 [2020-10-26 20:33:46,167 INFO L226 Difference]: Without dead ends: 2406 [2020-10-26 20:33:46,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:33:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2020-10-26 20:33:46,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2396. [2020-10-26 20:33:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2020-10-26 20:33:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 2756 transitions. [2020-10-26 20:33:46,250 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 2756 transitions. Word has length 169 [2020-10-26 20:33:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:46,250 INFO L481 AbstractCegarLoop]: Abstraction has 2396 states and 2756 transitions. [2020-10-26 20:33:46,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 2756 transitions. [2020-10-26 20:33:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-26 20:33:46,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:46,259 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:33:46,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:33:46,259 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:46,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:46,260 INFO L82 PathProgramCache]: Analyzing trace with hash -596383235, now seen corresponding path program 1 times [2020-10-26 20:33:46,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:46,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553865754] [2020-10-26 20:33:46,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:49,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:33:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,465 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:51,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:51,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:51,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 20:33:51,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:33:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:51,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:33:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:33:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:51,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:51,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:51,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:51,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-26 20:33:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:51,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:33:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:51,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:51,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-26 20:33:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:51,904 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 99 proven. 58 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-26 20:33:51,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553865754] [2020-10-26 20:33:51,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:51,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:51,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14669478] [2020-10-26 20:33:51,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:51,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:51,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:51,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:51,907 INFO L87 Difference]: Start difference. First operand 2396 states and 2756 transitions. Second operand 8 states. [2020-10-26 20:33:53,175 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:54,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:54,266 INFO L93 Difference]: Finished difference Result 5761 states and 6853 transitions. [2020-10-26 20:33:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:33:54,269 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2020-10-26 20:33:54,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:54,289 INFO L225 Difference]: With dead ends: 5761 [2020-10-26 20:33:54,289 INFO L226 Difference]: Without dead ends: 3506 [2020-10-26 20:33:54,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:33:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2020-10-26 20:33:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 2940. [2020-10-26 20:33:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2020-10-26 20:33:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3363 transitions. [2020-10-26 20:33:54,403 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3363 transitions. Word has length 204 [2020-10-26 20:33:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:54,403 INFO L481 AbstractCegarLoop]: Abstraction has 2940 states and 3363 transitions. [2020-10-26 20:33:54,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3363 transitions. [2020-10-26 20:33:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-26 20:33:54,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:54,413 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:33:54,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:33:54,413 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:54,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2072968718, now seen corresponding path program 1 times [2020-10-26 20:33:54,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:54,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234822230] [2020-10-26 20:33:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:54,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:54,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:54,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:33:59,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:33:59,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,686 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:59,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:59,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:33:59,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:33:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:33:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:33:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:33:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:59,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:59,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:59,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:59,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:33:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:59,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:33:59,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:59,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:59,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 20:33:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:59,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:59,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:59,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:33:59,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:59,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:59,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-26 20:33:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:59,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 165 proven. 26 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-10-26 20:34:00,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234822230] [2020-10-26 20:34:00,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:00,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:00,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382258324] [2020-10-26 20:34:00,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:00,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:00,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:00,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:00,022 INFO L87 Difference]: Start difference. First operand 2940 states and 3363 transitions. Second operand 8 states. [2020-10-26 20:34:00,151 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:00,779 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:02,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:02,378 INFO L93 Difference]: Finished difference Result 6587 states and 7615 transitions. [2020-10-26 20:34:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:34:02,378 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 237 [2020-10-26 20:34:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:02,397 INFO L225 Difference]: With dead ends: 6587 [2020-10-26 20:34:02,398 INFO L226 Difference]: Without dead ends: 3788 [2020-10-26 20:34:02,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:34:02,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2020-10-26 20:34:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3772. [2020-10-26 20:34:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3772 states. [2020-10-26 20:34:02,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3772 states to 3772 states and 4233 transitions. [2020-10-26 20:34:02,512 INFO L78 Accepts]: Start accepts. Automaton has 3772 states and 4233 transitions. Word has length 237 [2020-10-26 20:34:02,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:02,513 INFO L481 AbstractCegarLoop]: Abstraction has 3772 states and 4233 transitions. [2020-10-26 20:34:02,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:02,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3772 states and 4233 transitions. [2020-10-26 20:34:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-26 20:34:02,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:02,525 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-26 20:34:02,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:02,526 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:02,527 INFO L82 PathProgramCache]: Analyzing trace with hash -700996836, now seen corresponding path program 1 times [2020-10-26 20:34:02,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:02,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717841007] [2020-10-26 20:34:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:02,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:02,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:03,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:07,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:07,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:07,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:07,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:34:07,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:07,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:34:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:07,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:07,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:07,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:34:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:34:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:08,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:08,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-26 20:34:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:08,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:34:08,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:08,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:08,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:08,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-26 20:34:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 222 proven. 26 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-10-26 20:34:08,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717841007] [2020-10-26 20:34:08,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:08,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:08,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420101157] [2020-10-26 20:34:08,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:08,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:08,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:08,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:08,152 INFO L87 Difference]: Start difference. First operand 3772 states and 4233 transitions. Second operand 8 states. [2020-10-26 20:34:08,287 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:10,718 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:34:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:10,755 INFO L93 Difference]: Finished difference Result 7846 states and 8875 transitions. [2020-10-26 20:34:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:34:10,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 279 [2020-10-26 20:34:10,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:10,777 INFO L225 Difference]: With dead ends: 7846 [2020-10-26 20:34:10,777 INFO L226 Difference]: Without dead ends: 3933 [2020-10-26 20:34:10,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:34:10,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2020-10-26 20:34:10,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3629. [2020-10-26 20:34:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3629 states. [2020-10-26 20:34:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 4043 transitions. [2020-10-26 20:34:10,902 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 4043 transitions. Word has length 279 [2020-10-26 20:34:10,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:10,903 INFO L481 AbstractCegarLoop]: Abstraction has 3629 states and 4043 transitions. [2020-10-26 20:34:10,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 4043 transitions. [2020-10-26 20:34:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-26 20:34:10,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:10,916 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-26 20:34:10,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:10,916 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:10,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:10,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1322807035, now seen corresponding path program 1 times [2020-10-26 20:34:10,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:10,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253732849] [2020-10-26 20:34:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:11,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:11,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:11,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-26 20:34:11,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 944 [2020-10-26 20:34:11,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:34:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 20:34:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,242 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:12,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:12,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:12,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:12,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:12,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:34:12,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:12,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:12,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:12,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:12,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:12,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:12,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:12,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:12,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:34:12,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:12,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:34:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:12,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:12,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:12,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:12,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:34:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-26 20:34:12,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253732849] [2020-10-26 20:34:12,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:12,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:12,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895312234] [2020-10-26 20:34:12,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:34:12,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:12,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:34:12,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:34:12,683 INFO L87 Difference]: Start difference. First operand 3629 states and 4043 transitions. Second operand 5 states. [2020-10-26 20:34:13,670 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-26 20:34:14,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:14,026 INFO L93 Difference]: Finished difference Result 7064 states and 7886 transitions. [2020-10-26 20:34:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:14,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-10-26 20:34:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:14,043 INFO L225 Difference]: With dead ends: 7064 [2020-10-26 20:34:14,043 INFO L226 Difference]: Without dead ends: 3500 [2020-10-26 20:34:14,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:14,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2020-10-26 20:34:14,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3492. [2020-10-26 20:34:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3492 states. [2020-10-26 20:34:14,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 3886 transitions. [2020-10-26 20:34:14,136 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 3886 transitions. Word has length 298 [2020-10-26 20:34:14,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:14,136 INFO L481 AbstractCegarLoop]: Abstraction has 3492 states and 3886 transitions. [2020-10-26 20:34:14,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:34:14,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 3886 transitions. [2020-10-26 20:34:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-26 20:34:14,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:14,149 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:14,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:14,150 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:14,150 INFO L82 PathProgramCache]: Analyzing trace with hash 335485853, now seen corresponding path program 1 times [2020-10-26 20:34:14,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:14,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125702098] [2020-10-26 20:34:14,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:14,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-26 20:34:15,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-10-26 20:34:15,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-26 20:34:15,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-26 20:34:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:15,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:15,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:15,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:15,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:15,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:15,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:15,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:15,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:15,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:15,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:15,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:15,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-26 20:34:15,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 20:34:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:34:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-26 20:34:15,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125702098] [2020-10-26 20:34:15,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:15,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:15,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908256103] [2020-10-26 20:34:15,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:15,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:15,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:15,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:15,960 INFO L87 Difference]: Start difference. First operand 3492 states and 3886 transitions. Second operand 7 states. [2020-10-26 20:34:16,525 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:16,666 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:17,891 INFO L93 Difference]: Finished difference Result 6992 states and 7814 transitions. [2020-10-26 20:34:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:17,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 318 [2020-10-26 20:34:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:17,907 INFO L225 Difference]: With dead ends: 6992 [2020-10-26 20:34:17,908 INFO L226 Difference]: Without dead ends: 3641 [2020-10-26 20:34:17,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2020-10-26 20:34:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3359. [2020-10-26 20:34:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3359 states. [2020-10-26 20:34:18,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3719 transitions. [2020-10-26 20:34:18,005 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3719 transitions. Word has length 318 [2020-10-26 20:34:18,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:18,005 INFO L481 AbstractCegarLoop]: Abstraction has 3359 states and 3719 transitions. [2020-10-26 20:34:18,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:18,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3719 transitions. [2020-10-26 20:34:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-26 20:34:18,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:18,019 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:18,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:18,020 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:18,020 INFO L82 PathProgramCache]: Analyzing trace with hash -918193531, now seen corresponding path program 1 times [2020-10-26 20:34:18,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:18,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111712533] [2020-10-26 20:34:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:18,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-26 20:34:18,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-26 20:34:18,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-26 20:34:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 20:34:18,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:19,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:19,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:19,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:19,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:19,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:19,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:19,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:19,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:34:19,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:19,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-26 20:34:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:34:19,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-26 20:34:19,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:19,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-26 20:34:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-26 20:34:19,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111712533] [2020-10-26 20:34:19,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:19,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:19,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583528772] [2020-10-26 20:34:19,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:19,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:19,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:19,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:19,828 INFO L87 Difference]: Start difference. First operand 3359 states and 3719 transitions. Second operand 7 states. [2020-10-26 20:34:20,669 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:34:20,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:20,958 INFO L93 Difference]: Finished difference Result 6519 states and 7234 transitions. [2020-10-26 20:34:20,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:20,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-26 20:34:20,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:20,960 INFO L225 Difference]: With dead ends: 6519 [2020-10-26 20:34:20,960 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:34:20,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:34:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:34:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:34:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:34:20,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2020-10-26 20:34:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:20,974 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:34:20,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:34:20,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:34:20,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:34:20,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:34:22,085 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 124 [2020-10-26 20:34:22,357 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 124 [2020-10-26 20:34:22,651 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 36 [2020-10-26 20:34:24,071 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 258 DAG size of output: 87 [2020-10-26 20:34:24,464 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 57 [2020-10-26 20:34:24,928 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 57 [2020-10-26 20:34:25,316 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 52 [2020-10-26 20:34:25,323 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:34:25,323 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:34:25,323 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:34:25,323 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:34:25,323 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:25,324 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:34:25,324 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:25,324 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,324 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,324 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,324 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:34:25,325 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,326 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:34:25,327 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,328 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:34:25,329 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:34:25,330 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,331 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:34:25,332 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:34:25,333 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:34:25,334 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,335 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,335 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,335 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,341 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:34:25,341 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,341 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:34:25,342 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:34:25,343 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:34:25,344 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:34:25,344 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:34:25,344 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,344 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,344 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a21~0 1)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a8~0 |old(~a8~0)|))) (let ((.cse7 (not (= ~a12~0 8))) (.cse8 (not (<= 15 |old(~a8~0)|))) (.cse9 (and .cse0 .cse1 .cse4 .cse2 .cse3 .cse5)) (.cse6 (not (= |old(~a21~0)| 1)))) (and (or (not (= |old(~a8~0)| 13)) (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|) .cse2 .cse3 (= ~a8~0 13))) (or (not (= 14 |old(~a8~0)|)) (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse1 (= ~a21~0 ~a7~0) .cse4 .cse2 .cse5 (= ~a16~0 4)) .cse6 .cse7 (not (= |old(~a7~0)| |old(~a21~0)|)) (not (= 4 |old(~a16~0)|)) (not (= 0 |old(~a17~0)|))) (or (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) .cse8 (not (<= 1 |old(~a7~0)|)) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a7~0)| 1)) (not (<= |old(~a17~0)| 0)) (and (<= 1 ~a7~0) .cse1 .cse4 .cse2 (<= ~a16~0 4) (<= 4 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0) (<= ~a7~0 1)) .cse6 .cse7 (not (<= |old(~a20~0)| 0))) (or (and .cse1 .cse4 .cse2 .cse3 .cse5 (= ~a7~0 0)) .cse6 (not (= |old(~a7~0)| 0))) (or (not (<= 5 |old(~a16~0)|)) .cse9 .cse6) (or .cse8 .cse9 .cse6 (= |old(~a7~0)| 1))))) [2020-10-26 20:34:25,344 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,344 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:34:25,345 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:34:25,346 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:34:25,347 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:25,348 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L270 CegarLoopResult]: At program point L463(line 463) the Hoare annotation is: (let ((.cse2 (not (<= 15 |old(~a8~0)|))) (.cse1 (not (= ~a12~0 8))) (.cse0 (not (= |old(~a21~0)| 1)))) (and (or (not (= 14 |old(~a8~0)|)) (not (= |old(~a17~0)| |old(~a20~0)|)) .cse0 .cse1 (not (= |old(~a7~0)| |old(~a21~0)|)) (not (= 4 |old(~a16~0)|)) (not (= 0 |old(~a17~0)|))) (not (= |old(~a8~0)| 13)) (or .cse2 .cse0 (= |old(~a7~0)| 1)) (or .cse0 (not (= |old(~a7~0)| 0))) (or (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) .cse2 (not (<= |old(~a17~0)| 0)) .cse0 .cse1 (not (<= |old(~a20~0)| 0))) (or (not (<= 5 |old(~a16~0)|)) .cse0))) [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L463-1(line 463) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:34:25,349 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:25,350 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-26 20:34:25,350 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:34:25,350 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:25,351 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:34:25,351 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:25,351 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse2 (= ~a12~0 8)) (.cse3 (<= 15 ~a8~0))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 5 ~a16~0)) (and (= ~a20~0 ~a17~0) .cse0 .cse1 (= 14 ~a8~0) .cse2 (= ~a16~0 4) (= ~a17~0 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (= ~a8~0 13) (and .cse0 (= ~a7~0 0)) (and .cse0 (not .cse1) .cse3) (and .cse2 (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) .cse3 (<= ~a20~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:34:25,351 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:34:25,351 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:34:25,351 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse2 (= ~a12~0 8)) (.cse3 (<= 15 ~a8~0))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 5 ~a16~0)) (and (= ~a20~0 ~a17~0) .cse0 .cse1 (= 14 ~a8~0) .cse2 (= ~a16~0 4) (= ~a17~0 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (= ~a8~0 13) (and .cse0 (= ~a7~0 0)) (and .cse0 (not .cse1) .cse3) (and .cse2 (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) .cse3 (<= ~a20~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:34:25,352 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:25,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:34:25 BoogieIcfgContainer [2020-10-26 20:34:25,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:34:25,375 INFO L168 Benchmark]: Toolchain (without parser) took 81709.38 ms. Allocated memory was 152.0 MB in the beginning and 1.1 GB in the end (delta: 988.8 MB). Free memory was 125.7 MB in the beginning and 563.9 MB in the end (delta: -438.3 MB). Peak memory consumption was 567.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:25,376 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 152.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:34:25,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.88 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 131.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:25,377 INFO L168 Benchmark]: Boogie Preprocessor took 137.29 ms. Allocated memory is still 152.0 MB. Free memory was 131.6 MB in the beginning and 126.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:25,378 INFO L168 Benchmark]: RCFGBuilder took 1578.85 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 105.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:25,379 INFO L168 Benchmark]: TraceAbstraction took 79311.08 ms. Allocated memory was 152.0 MB in the beginning and 1.1 GB in the end (delta: 988.8 MB). Free memory was 104.9 MB in the beginning and 563.9 MB in the end (delta: -459.1 MB). Peak memory consumption was 546.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:25,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 152.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 669.88 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 131.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.29 ms. Allocated memory is still 152.0 MB. Free memory was 131.6 MB in the beginning and 126.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1578.85 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 105.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 79311.08 ms. Allocated memory was 152.0 MB in the beginning and 1.1 GB in the end (delta: 988.8 MB). Free memory was 104.9 MB in the beginning and 563.9 MB in the end (delta: -459.1 MB). Peak memory consumption was 546.0 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: 585]: Loop Invariant Derived loop invariant: ((((((((((!(\old(a17) == 1) || (a21 == 1 && 5 <= a16)) || ((((((a20 == a17 && a21 == 1) && a7 == 1) && 14 == a8) && a12 == 8) && a16 == 4) && a17 == 0)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || a8 == 13) || (a21 == 1 && a7 == 0)) || ((a21 == 1 && !(a7 == 1)) && 15 <= a8)) || (((((((a12 == 8 && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || !(5 == \old(a16))) || !(\old(a21) == 1)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 74.8s, OverallIterations: 13, TraceHistogramMax: 7, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 359 SDtfs, 6594 SDslu, 482 SDs, 0 SdLazy, 9816 SolverSat, 1420 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 160 SyntacticMatches, 7 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3772occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 1790 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 461 PreInvPairs, 521 NumberOfFragments, 678 HoareAnnotationTreeSize, 461 FomulaSimplifications, 128427 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6909 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 45.7s InterpolantComputationTime, 2638 NumberOfCodeBlocks, 2638 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2625 ConstructedInterpolants, 0 QuantifiedInterpolants, 3077997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 2789/2996 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...