/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/Problem10_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:31:24,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:31:24,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:31:24,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:31:24,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:31:24,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:31:24,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:31:24,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:31:24,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:31:24,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:31:24,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:31:24,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:31:24,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:31:24,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:31:24,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:31:24,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:31:24,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:31:24,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:31:24,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:31:24,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:31:24,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:31:24,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:31:24,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:31:24,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:31:24,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:31:24,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:31:24,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:31:24,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:31:24,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:31:24,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:31:24,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:31:24,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:31:24,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:31:24,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:31:24,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:31:24,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:31:24,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:31:24,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:31:24,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:31:24,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:31:24,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:31:24,634 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 22:31:24,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:31:24,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:31:24,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:31:24,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:31:24,690 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:31:24,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:31:24,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:31:24,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:31:24,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:31:24,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:31:24,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:31:24,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:31:24,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:31:24,694 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:31:24,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:31:24,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:31:24,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:31:24,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:31:24,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:31:24,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:31:24,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:31:24,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:24,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:31:24,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:31:24,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:31:24,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:31:24,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:31:24,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:31:24,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:31:24,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:31:25,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:31:25,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:31:25,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:31:25,233 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:31:25,234 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:31:25,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label23.c [2020-10-26 22:31:25,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e29d78c60/5063aad431af4306b0715f405e9cdb93/FLAG2fb2dfc37 [2020-10-26 22:31:26,035 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:31:26,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label23.c [2020-10-26 22:31:26,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e29d78c60/5063aad431af4306b0715f405e9cdb93/FLAG2fb2dfc37 [2020-10-26 22:31:26,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e29d78c60/5063aad431af4306b0715f405e9cdb93 [2020-10-26 22:31:26,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:31:26,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:31:26,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:26,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:31:26,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:31:26,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:26" (1/1) ... [2020-10-26 22:31:26,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461d3cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:26, skipping insertion in model container [2020-10-26 22:31:26,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:26" (1/1) ... [2020-10-26 22:31:26,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:31:26,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:31:27,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:27,014 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:31:27,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:27,178 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:31:27,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27 WrapperNode [2020-10-26 22:31:27,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:27,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:31:27,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:31:27,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:31:27,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (1/1) ... [2020-10-26 22:31:27,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:31:27,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:31:27,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:31:27,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:31:27,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (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 22:31:27,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:31:27,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:31:27,375 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:31:27,375 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:31:27,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:31:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:31:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:31:27,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:31:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:31:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:31:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:31:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:31:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:31:27,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:31:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:31:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:31:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:31:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:31:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:31:29,103 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:31:29,104 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:31:29,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:29 BoogieIcfgContainer [2020-10-26 22:31:29,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:31:29,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:31:29,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:31:29,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:31:29,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:31:26" (1/3) ... [2020-10-26 22:31:29,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e72fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:29, skipping insertion in model container [2020-10-26 22:31:29,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:27" (2/3) ... [2020-10-26 22:31:29,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e72fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:29, skipping insertion in model container [2020-10-26 22:31:29,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:29" (3/3) ... [2020-10-26 22:31:29,116 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label23.c [2020-10-26 22:31:29,131 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:31:29,136 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:31:29,152 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:31:29,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:31:29,183 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:31:29,183 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:31:29,183 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:31:29,184 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:31:29,184 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:31:29,184 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:31:29,184 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:31:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:31:29,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-26 22:31:29,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:29,218 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] [2020-10-26 22:31:29,219 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:29,226 INFO L82 PathProgramCache]: Analyzing trace with hash 310251186, now seen corresponding path program 1 times [2020-10-26 22:31:29,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:29,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153045457] [2020-10-26 22:31:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:30,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-26 22:31:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-26 22:31:30,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 22:31:30,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:31:30,429 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:31:30,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:30,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:30,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:30,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:31:30,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:30,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:30,520 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 22:31:30,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153045457] [2020-10-26 22:31:30,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:30,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 22:31:30,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881390727] [2020-10-26 22:31:30,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:30,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:30,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:30,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:30,559 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-26 22:31:30,737 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:31,587 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:34,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:34,133 INFO L93 Difference]: Finished difference Result 735 states and 1308 transitions. [2020-10-26 22:31:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:31:34,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-26 22:31:34,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:34,153 INFO L225 Difference]: With dead ends: 735 [2020-10-26 22:31:34,154 INFO L226 Difference]: Without dead ends: 448 [2020-10-26 22:31:34,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:34,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-26 22:31:34,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-26 22:31:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 22:31:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 649 transitions. [2020-10-26 22:31:34,298 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 649 transitions. Word has length 53 [2020-10-26 22:31:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:34,299 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 649 transitions. [2020-10-26 22:31:34,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 649 transitions. [2020-10-26 22:31:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 22:31:34,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:34,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:34,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:31:34,317 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:34,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:34,319 INFO L82 PathProgramCache]: Analyzing trace with hash 105139245, now seen corresponding path program 1 times [2020-10-26 22:31:34,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:34,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088567384] [2020-10-26 22:31:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:34,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:34,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:35,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-26 22:31:35,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-10-26 22:31:35,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:31:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:31:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 22:31:35,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:35,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:35,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:35,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:35,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 22:31:35,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:35,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:35,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:35,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:35,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:31:35,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:35,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-26 22:31:35,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:35,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:31:35,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:35,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088567384] [2020-10-26 22:31:35,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:35,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:35,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083184024] [2020-10-26 22:31:35,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:35,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:35,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:35,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:35,545 INFO L87 Difference]: Start difference. First operand 442 states and 649 transitions. Second operand 5 states. [2020-10-26 22:31:36,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:36,901 INFO L93 Difference]: Finished difference Result 907 states and 1335 transitions. [2020-10-26 22:31:36,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:36,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-10-26 22:31:36,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:36,906 INFO L225 Difference]: With dead ends: 907 [2020-10-26 22:31:36,907 INFO L226 Difference]: Without dead ends: 448 [2020-10-26 22:31:36,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:36,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-26 22:31:36,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-26 22:31:36,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 22:31:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 646 transitions. [2020-10-26 22:31:36,949 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 646 transitions. Word has length 132 [2020-10-26 22:31:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:36,950 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 646 transitions. [2020-10-26 22:31:36,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 646 transitions. [2020-10-26 22:31:36,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-26 22:31:36,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:36,953 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:36,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:31:36,953 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:36,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:36,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1802144743, now seen corresponding path program 1 times [2020-10-26 22:31:36,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:36,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193255904] [2020-10-26 22:31:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:37,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:38,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:38,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-26 22:31:38,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:38,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1644 [2020-10-26 22:31:38,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:31:38,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:38,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:38,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:38,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:38,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:38,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:31:38,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:38,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:38,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:38,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:39,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:39,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:39,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-26 22:31:39,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:39,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193255904] [2020-10-26 22:31:39,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:39,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:39,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712330362] [2020-10-26 22:31:39,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:39,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:39,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:39,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:39,156 INFO L87 Difference]: Start difference. First operand 442 states and 646 transitions. Second operand 7 states. [2020-10-26 22:31:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:41,210 INFO L93 Difference]: Finished difference Result 1341 states and 2023 transitions. [2020-10-26 22:31:41,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:41,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-26 22:31:41,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:41,224 INFO L225 Difference]: With dead ends: 1341 [2020-10-26 22:31:41,225 INFO L226 Difference]: Without dead ends: 905 [2020-10-26 22:31:41,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2020-10-26 22:31:41,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 738. [2020-10-26 22:31:41,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-10-26 22:31:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 988 transitions. [2020-10-26 22:31:41,298 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 988 transitions. Word has length 135 [2020-10-26 22:31:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:41,300 INFO L481 AbstractCegarLoop]: Abstraction has 738 states and 988 transitions. [2020-10-26 22:31:41,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 988 transitions. [2020-10-26 22:31:41,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-26 22:31:41,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:41,309 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:41,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:31:41,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:41,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:41,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1956319044, now seen corresponding path program 1 times [2020-10-26 22:31:41,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:41,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523986210] [2020-10-26 22:31:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:41,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:41,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:43,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-26 22:31:43,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:43,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1780 [2020-10-26 22:31:43,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:43,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:43,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:43,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:31:43,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:43,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:43,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:43,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:43,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:31:43,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:43,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:43,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:43,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:43,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:43,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-26 22:31:43,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:43,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:43,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-26 22:31:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:43,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:43,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:43,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 22:31:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:43,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523986210] [2020-10-26 22:31:43,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:43,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:43,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062664807] [2020-10-26 22:31:43,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:43,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:43,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:43,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:43,692 INFO L87 Difference]: Start difference. First operand 738 states and 988 transitions. Second operand 7 states. [2020-10-26 22:31:45,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:45,916 INFO L93 Difference]: Finished difference Result 1794 states and 2483 transitions. [2020-10-26 22:31:45,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:45,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2020-10-26 22:31:45,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:45,929 INFO L225 Difference]: With dead ends: 1794 [2020-10-26 22:31:45,929 INFO L226 Difference]: Without dead ends: 1062 [2020-10-26 22:31:45,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-26 22:31:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 893. [2020-10-26 22:31:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2020-10-26 22:31:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1170 transitions. [2020-10-26 22:31:45,986 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1170 transitions. Word has length 205 [2020-10-26 22:31:45,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:45,989 INFO L481 AbstractCegarLoop]: Abstraction has 893 states and 1170 transitions. [2020-10-26 22:31:45,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:45,989 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1170 transitions. [2020-10-26 22:31:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-26 22:31:45,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:45,993 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:45,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:31:45,994 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:45,994 INFO L82 PathProgramCache]: Analyzing trace with hash -842351650, now seen corresponding path program 1 times [2020-10-26 22:31:45,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:45,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328123663] [2020-10-26 22:31:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:46,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:46,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:46,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:50,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4734 [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:50,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:50,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:50,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:50,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:50,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:50,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:31:50,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:50,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:50,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:50,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:31:51,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-26 22:31:51,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:31:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:31:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:51,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 22:31:51,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 90 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:31:51,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328123663] [2020-10-26 22:31:51,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:51,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:51,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222054720] [2020-10-26 22:31:51,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:51,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:51,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:51,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:51,327 INFO L87 Difference]: Start difference. First operand 893 states and 1170 transitions. Second operand 7 states. [2020-10-26 22:31:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:53,267 INFO L93 Difference]: Finished difference Result 1949 states and 2540 transitions. [2020-10-26 22:31:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:31:53,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-26 22:31:53,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:53,278 INFO L225 Difference]: With dead ends: 1949 [2020-10-26 22:31:53,278 INFO L226 Difference]: Without dead ends: 1062 [2020-10-26 22:31:53,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:31:53,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-26 22:31:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1046. [2020-10-26 22:31:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-10-26 22:31:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1337 transitions. [2020-10-26 22:31:53,330 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1337 transitions. Word has length 212 [2020-10-26 22:31:53,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:53,330 INFO L481 AbstractCegarLoop]: Abstraction has 1046 states and 1337 transitions. [2020-10-26 22:31:53,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1337 transitions. [2020-10-26 22:31:53,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-26 22:31:53,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:53,336 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:53,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:31:53,337 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:53,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:53,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1378741866, now seen corresponding path program 1 times [2020-10-26 22:31:53,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:53,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818092595] [2020-10-26 22:31:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:53,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:53,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:55,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-26 22:31:55,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:55,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2086 [2020-10-26 22:31:55,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:31:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:31:55,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:55,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:55,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:55,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:55,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:55,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:31:55,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:55,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:55,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:55,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:31:55,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:55,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 22:31:55,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:31:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:55,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:31:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:55,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:55,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:55,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:55,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-26 22:31:55,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:55,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:56,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818092595] [2020-10-26 22:31:56,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:56,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:56,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565341822] [2020-10-26 22:31:56,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:56,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:56,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:56,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:56,080 INFO L87 Difference]: Start difference. First operand 1046 states and 1337 transitions. Second operand 7 states. [2020-10-26 22:31:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:58,308 INFO L93 Difference]: Finished difference Result 2261 states and 3031 transitions. [2020-10-26 22:31:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:58,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-10-26 22:31:58,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:58,320 INFO L225 Difference]: With dead ends: 2261 [2020-10-26 22:31:58,320 INFO L226 Difference]: Without dead ends: 1364 [2020-10-26 22:31:58,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-10-26 22:31:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1346. [2020-10-26 22:31:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-26 22:31:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1674 transitions. [2020-10-26 22:31:58,378 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1674 transitions. Word has length 250 [2020-10-26 22:31:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:58,379 INFO L481 AbstractCegarLoop]: Abstraction has 1346 states and 1674 transitions. [2020-10-26 22:31:58,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1674 transitions. [2020-10-26 22:31:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-26 22:31:58,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:58,386 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:58,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:31:58,387 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:58,387 INFO L82 PathProgramCache]: Analyzing trace with hash -259883386, now seen corresponding path program 1 times [2020-10-26 22:31:58,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:58,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622682534] [2020-10-26 22:31:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:58,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:58,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:01,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-10-26 22:32:01,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3208 [2020-10-26 22:32:01,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:01,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:32:01,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:01,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:32:01,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:01,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:01,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:01,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:32:01,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:02,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:02,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:02,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-26 22:32:02,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:02,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:02,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:02,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:02,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:02,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:32:02,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-26 22:32:02,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:32:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:32:02,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 187 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:02,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622682534] [2020-10-26 22:32:02,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:02,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:02,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828401451] [2020-10-26 22:32:02,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:02,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:02,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:02,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:02,682 INFO L87 Difference]: Start difference. First operand 1346 states and 1674 transitions. Second operand 8 states. [2020-10-26 22:32:05,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:05,280 INFO L93 Difference]: Finished difference Result 3469 states and 4471 transitions. [2020-10-26 22:32:05,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:05,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 309 [2020-10-26 22:32:05,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:05,296 INFO L225 Difference]: With dead ends: 3469 [2020-10-26 22:32:05,296 INFO L226 Difference]: Without dead ends: 2252 [2020-10-26 22:32:05,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:05,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-26 22:32:05,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1944. [2020-10-26 22:32:05,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-10-26 22:32:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2525 transitions. [2020-10-26 22:32:05,386 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2525 transitions. Word has length 309 [2020-10-26 22:32:05,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:05,387 INFO L481 AbstractCegarLoop]: Abstraction has 1944 states and 2525 transitions. [2020-10-26 22:32:05,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:05,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2525 transitions. [2020-10-26 22:32:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-26 22:32:05,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:05,396 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:05,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:32:05,397 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:05,397 INFO L82 PathProgramCache]: Analyzing trace with hash 550723131, now seen corresponding path program 1 times [2020-10-26 22:32:05,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:05,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460391694] [2020-10-26 22:32:05,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:07,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-26 22:32:09,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:09,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4256 [2020-10-26 22:32:09,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:09,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:09,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:09,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:09,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:10,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-26 22:32:10,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:10,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:10,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:10,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:10,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-26 22:32:10,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:10,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:32:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:10,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:10,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 22:32:10,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 213 proven. 76 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-26 22:32:10,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460391694] [2020-10-26 22:32:10,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:10,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:10,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761534389] [2020-10-26 22:32:10,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:10,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:10,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:10,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:10,533 INFO L87 Difference]: Start difference. First operand 1944 states and 2525 transitions. Second operand 7 states. [2020-10-26 22:32:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:12,934 INFO L93 Difference]: Finished difference Result 4776 states and 6310 transitions. [2020-10-26 22:32:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:12,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-10-26 22:32:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:12,951 INFO L225 Difference]: With dead ends: 4776 [2020-10-26 22:32:12,951 INFO L226 Difference]: Without dead ends: 2981 [2020-10-26 22:32:12,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:12,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2020-10-26 22:32:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2979. [2020-10-26 22:32:13,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2979 states. [2020-10-26 22:32:13,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 3704 transitions. [2020-10-26 22:32:13,044 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 3704 transitions. Word has length 327 [2020-10-26 22:32:13,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:13,044 INFO L481 AbstractCegarLoop]: Abstraction has 2979 states and 3704 transitions. [2020-10-26 22:32:13,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 3704 transitions. [2020-10-26 22:32:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-26 22:32:13,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:13,053 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:13,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:13,054 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:13,054 INFO L82 PathProgramCache]: Analyzing trace with hash -2126342367, now seen corresponding path program 1 times [2020-10-26 22:32:13,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:13,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845271842] [2020-10-26 22:32:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:13,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:13,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-26 22:32:15,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2303 [2020-10-26 22:32:15,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:32:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:32:15,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:15,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-26 22:32:15,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:32:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:32:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:16,050 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 293 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:32:16,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845271842] [2020-10-26 22:32:16,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:16,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:16,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086503203] [2020-10-26 22:32:16,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:16,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:16,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:16,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:16,053 INFO L87 Difference]: Start difference. First operand 2979 states and 3704 transitions. Second operand 7 states. [2020-10-26 22:32:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:18,385 INFO L93 Difference]: Finished difference Result 5964 states and 7593 transitions. [2020-10-26 22:32:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:18,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 346 [2020-10-26 22:32:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:18,408 INFO L225 Difference]: With dead ends: 5964 [2020-10-26 22:32:18,408 INFO L226 Difference]: Without dead ends: 3134 [2020-10-26 22:32:18,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2020-10-26 22:32:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 2981. [2020-10-26 22:32:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2981 states. [2020-10-26 22:32:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 3682 transitions. [2020-10-26 22:32:18,508 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 3682 transitions. Word has length 346 [2020-10-26 22:32:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:18,509 INFO L481 AbstractCegarLoop]: Abstraction has 2981 states and 3682 transitions. [2020-10-26 22:32:18,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 3682 transitions. [2020-10-26 22:32:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-26 22:32:18,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:18,520 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:18,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:18,520 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:18,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:18,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1770356533, now seen corresponding path program 1 times [2020-10-26 22:32:18,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:18,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909354532] [2020-10-26 22:32:18,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-26 22:32:20,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2218 [2020-10-26 22:32:20,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:32:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:20,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:20,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:20,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:20,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:21,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:21,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:21,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:21,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 22:32:21,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:21,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:21,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:21,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:21,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:21,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:32:21,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:32:21,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:32:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:21,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:21,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:21,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-26 22:32:21,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:21,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 298 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:32:21,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909354532] [2020-10-26 22:32:21,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:21,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:21,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842126206] [2020-10-26 22:32:21,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:21,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:21,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:21,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:21,619 INFO L87 Difference]: Start difference. First operand 2981 states and 3682 transitions. Second operand 7 states. [2020-10-26 22:32:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:24,042 INFO L93 Difference]: Finished difference Result 6843 states and 8644 transitions. [2020-10-26 22:32:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:24,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-26 22:32:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:24,068 INFO L225 Difference]: With dead ends: 6843 [2020-10-26 22:32:24,069 INFO L226 Difference]: Without dead ends: 4011 [2020-10-26 22:32:24,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4011 states. [2020-10-26 22:32:24,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4011 to 3861. [2020-10-26 22:32:24,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3861 states. [2020-10-26 22:32:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 4752 transitions. [2020-10-26 22:32:24,197 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 4752 transitions. Word has length 356 [2020-10-26 22:32:24,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:24,197 INFO L481 AbstractCegarLoop]: Abstraction has 3861 states and 4752 transitions. [2020-10-26 22:32:24,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:24,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 4752 transitions. [2020-10-26 22:32:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-26 22:32:24,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:24,209 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:24,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:24,209 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:24,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:24,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1228704005, now seen corresponding path program 1 times [2020-10-26 22:32:24,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:24,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095639626] [2020-10-26 22:32:24,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:24,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:24,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:25,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-26 22:32:25,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:25,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-26 22:32:25,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:25,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:25,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-26 22:32:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:32:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:26,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:26,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:26,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 22:32:26,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:26,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 22:32:26,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-26 22:32:26,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:32:26,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 22:32:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:26,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-26 22:32:26,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:26,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:26,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:26,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 316 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 22:32:26,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095639626] [2020-10-26 22:32:26,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:26,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:26,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471034863] [2020-10-26 22:32:26,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:26,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:26,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:26,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:26,746 INFO L87 Difference]: Start difference. First operand 3861 states and 4752 transitions. Second operand 7 states. [2020-10-26 22:32:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:28,980 INFO L93 Difference]: Finished difference Result 8207 states and 10255 transitions. [2020-10-26 22:32:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:28,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-26 22:32:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:29,000 INFO L225 Difference]: With dead ends: 8207 [2020-10-26 22:32:29,001 INFO L226 Difference]: Without dead ends: 3762 [2020-10-26 22:32:29,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:29,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2020-10-26 22:32:29,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3279. [2020-10-26 22:32:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3279 states. [2020-10-26 22:32:29,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 3747 transitions. [2020-10-26 22:32:29,117 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 3747 transitions. Word has length 357 [2020-10-26 22:32:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:29,118 INFO L481 AbstractCegarLoop]: Abstraction has 3279 states and 3747 transitions. [2020-10-26 22:32:29,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 3747 transitions. [2020-10-26 22:32:29,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-26 22:32:29,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:29,129 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:29,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:29,129 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:29,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:29,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1094781931, now seen corresponding path program 1 times [2020-10-26 22:32:29,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:29,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123190633] [2020-10-26 22:32:29,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:29,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 381 [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 788 [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:30,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:32:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:32:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:30,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 298 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:32:30,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123190633] [2020-10-26 22:32:30,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:30,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:30,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103470420] [2020-10-26 22:32:30,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:30,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:30,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:30,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:30,547 INFO L87 Difference]: Start difference. First operand 3279 states and 3747 transitions. Second operand 7 states. [2020-10-26 22:32:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:32,574 INFO L93 Difference]: Finished difference Result 7422 states and 8559 transitions. [2020-10-26 22:32:32,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:32,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2020-10-26 22:32:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:32,598 INFO L225 Difference]: With dead ends: 7422 [2020-10-26 22:32:32,598 INFO L226 Difference]: Without dead ends: 4292 [2020-10-26 22:32:32,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:32,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2020-10-26 22:32:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 3853. [2020-10-26 22:32:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3853 states. [2020-10-26 22:32:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3853 states to 3853 states and 4439 transitions. [2020-10-26 22:32:32,741 INFO L78 Accepts]: Start accepts. Automaton has 3853 states and 4439 transitions. Word has length 365 [2020-10-26 22:32:32,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:32,742 INFO L481 AbstractCegarLoop]: Abstraction has 3853 states and 4439 transitions. [2020-10-26 22:32:32,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3853 states and 4439 transitions. [2020-10-26 22:32:32,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-10-26 22:32:32,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:32,752 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:32,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:32:32,752 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:32,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:32,753 INFO L82 PathProgramCache]: Analyzing trace with hash -673198487, now seen corresponding path program 1 times [2020-10-26 22:32:32,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:32,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872115888] [2020-10-26 22:32:32,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:32,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 22:32:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:33,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:33,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:33,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:33,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:32:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:32:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-26 22:32:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:32:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 138 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:32:33,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872115888] [2020-10-26 22:32:33,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:33,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:33,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027800230] [2020-10-26 22:32:33,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:33,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:33,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:33,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:33,760 INFO L87 Difference]: Start difference. First operand 3853 states and 4439 transitions. Second operand 5 states. [2020-10-26 22:32:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:35,213 INFO L93 Difference]: Finished difference Result 4001 states and 4587 transitions. [2020-10-26 22:32:35,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:35,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 367 [2020-10-26 22:32:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:35,230 INFO L225 Difference]: With dead ends: 4001 [2020-10-26 22:32:35,230 INFO L226 Difference]: Without dead ends: 3847 [2020-10-26 22:32:35,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2020-10-26 22:32:35,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3845. [2020-10-26 22:32:35,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3845 states. [2020-10-26 22:32:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 4413 transitions. [2020-10-26 22:32:35,339 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 4413 transitions. Word has length 367 [2020-10-26 22:32:35,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:35,340 INFO L481 AbstractCegarLoop]: Abstraction has 3845 states and 4413 transitions. [2020-10-26 22:32:35,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 4413 transitions. [2020-10-26 22:32:35,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-26 22:32:35,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:35,349 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:35,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:32:35,349 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:35,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:35,350 INFO L82 PathProgramCache]: Analyzing trace with hash 905769445, now seen corresponding path program 1 times [2020-10-26 22:32:35,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:35,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92667002] [2020-10-26 22:32:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1136 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 22:32:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:36,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:36,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:36,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:36,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:36,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:36,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:36,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:36,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:36,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:36,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:32:36,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:36,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:36,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:32:37,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,127 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 138 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-26 22:32:37,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92667002] [2020-10-26 22:32:37,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:37,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:37,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058359097] [2020-10-26 22:32:37,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:37,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:37,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:37,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:37,130 INFO L87 Difference]: Start difference. First operand 3845 states and 4413 transitions. Second operand 5 states. [2020-10-26 22:32:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:38,167 INFO L93 Difference]: Finished difference Result 4003 states and 4572 transitions. [2020-10-26 22:32:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:38,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 378 [2020-10-26 22:32:38,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:38,197 INFO L225 Difference]: With dead ends: 4003 [2020-10-26 22:32:38,197 INFO L226 Difference]: Without dead ends: 3845 [2020-10-26 22:32:38,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2020-10-26 22:32:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3843. [2020-10-26 22:32:38,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3843 states. [2020-10-26 22:32:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 4408 transitions. [2020-10-26 22:32:38,301 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 4408 transitions. Word has length 378 [2020-10-26 22:32:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:38,302 INFO L481 AbstractCegarLoop]: Abstraction has 3843 states and 4408 transitions. [2020-10-26 22:32:38,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 4408 transitions. [2020-10-26 22:32:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-26 22:32:38,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:38,314 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:38,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:32:38,315 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:38,315 INFO L82 PathProgramCache]: Analyzing trace with hash -912778841, now seen corresponding path program 1 times [2020-10-26 22:32:38,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:38,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896955292] [2020-10-26 22:32:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-26 22:32:39,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-10-26 22:32:39,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:32:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 22:32:39,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:39,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:39,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:39,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:39,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:39,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:39,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:32:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:39,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 22:32:39,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 22:32:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 138 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-26 22:32:39,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896955292] [2020-10-26 22:32:39,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:39,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:39,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453980239] [2020-10-26 22:32:39,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:39,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:39,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:39,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:39,832 INFO L87 Difference]: Start difference. First operand 3843 states and 4408 transitions. Second operand 5 states. [2020-10-26 22:32:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:41,088 INFO L93 Difference]: Finished difference Result 4007 states and 4573 transitions. [2020-10-26 22:32:41,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:41,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2020-10-26 22:32:41,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:41,101 INFO L225 Difference]: With dead ends: 4007 [2020-10-26 22:32:41,101 INFO L226 Difference]: Without dead ends: 3843 [2020-10-26 22:32:41,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:41,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-26 22:32:41,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3841. [2020-10-26 22:32:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-10-26 22:32:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 4403 transitions. [2020-10-26 22:32:41,201 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 4403 transitions. Word has length 393 [2020-10-26 22:32:41,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:41,202 INFO L481 AbstractCegarLoop]: Abstraction has 3841 states and 4403 transitions. [2020-10-26 22:32:41,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:41,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 4403 transitions. [2020-10-26 22:32:41,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-26 22:32:41,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:41,212 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 22:32:41,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:32:41,212 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:41,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2103774041, now seen corresponding path program 1 times [2020-10-26 22:32:41,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:41,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704359768] [2020-10-26 22:32:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 655 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-26 22:32:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:42,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:42,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:42,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:42,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:42,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:42,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:42,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:42,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:32:42,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:42,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 22:32:42,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:32:42,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-26 22:32:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:42,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:42,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:42,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:42,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 22:32:42,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:42,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 22:32:42,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 138 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-26 22:32:42,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704359768] [2020-10-26 22:32:42,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:42,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:42,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402421987] [2020-10-26 22:32:42,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:42,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:42,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:42,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:42,503 INFO L87 Difference]: Start difference. First operand 3841 states and 4403 transitions. Second operand 5 states. [2020-10-26 22:32:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:43,570 INFO L93 Difference]: Finished difference Result 3857 states and 4420 transitions. [2020-10-26 22:32:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:43,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2020-10-26 22:32:43,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:43,572 INFO L225 Difference]: With dead ends: 3857 [2020-10-26 22:32:43,572 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:32:43,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:43,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:32:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:32:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:32:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:32:43,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 393 [2020-10-26 22:32:43,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:43,584 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:32:43,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:32:43,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:32:43,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:32:43,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:32:44,148 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 164 [2020-10-26 22:32:45,140 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 164 [2020-10-26 22:32:45,942 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 56 [2020-10-26 22:32:47,169 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 245 DAG size of output: 79 [2020-10-26 22:32:47,716 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 63 [2020-10-26 22:32:48,418 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 56 [2020-10-26 22:32:48,423 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:32:48,423 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:32:48,423 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:32:48,423 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:32:48,423 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:32:48,424 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:32:48,425 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:32:48,425 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:32:48,425 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:32:48,425 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:32:48,425 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:32:48,426 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:32:48,427 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:32:48,428 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:32:48,429 INFO L270 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a1~0)| 505272))) (.cse1 (not (= |old(~a10~0)| 1))) (.cse3 (not (= 7 |old(~a19~0)|))) (.cse2 (not (= 14 ~a4~0))) (.cse4 (not (= ~a12~0 0)))) (and (or (not (= 3 |old(~a10~0)|)) .cse0) (or .cse1 .cse2 (not (<= |old(~a1~0)| 33)) .cse3 (not (<= 0 (+ |old(~a1~0)| 12))) .cse4) (or (not (= 0 |old(~a10~0)|)) .cse0) (not (= 9 |old(~a19~0)|)) (or (not (<= 9 |old(~a19~0)|)) .cse1) (or (not (<= 221 |old(~a1~0)|)) .cse1 .cse2 .cse3 .cse4) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)) (or (not (= 6 |old(~a19~0)|)) (not (<= (+ |old(~a1~0)| 333899) 0)) .cse2 (not (= 4 |old(~a10~0)|)) .cse4))) [2020-10-26 22:32:48,429 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L144-1(line 144) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,430 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:32:48,431 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:32:48,432 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,433 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:32:48,434 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,435 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse7 (= ~a1~0 |old(~a1~0)|)) (.cse8 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse7 (= ~a19~0 |old(~a19~0)|) .cse8)) (.cse1 (not (<= |old(~a1~0)| 505272))) (.cse2 (and (= 7 ~a19~0) .cse7 .cse8)) (.cse3 (not (= |old(~a10~0)| 1))) (.cse5 (not (= 7 |old(~a19~0)|))) (.cse4 (not (= 14 ~a4~0))) (.cse6 (not (= ~a12~0 0)))) (and (or .cse0 (not (= 0 |old(~a10~0)|)) .cse1) (or .cse2 (not (<= 221 |old(~a1~0)|)) .cse3 .cse4 .cse5 .cse6) (or (not (<= 9 |old(~a19~0)|)) .cse3 .cse0) (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (= 2 |old(~a10~0)|))) (or (not (= 3 |old(~a10~0)|)) .cse0 .cse1) (or .cse2 .cse3 .cse4 (not (<= |old(~a1~0)| 33)) .cse5 (not (<= 0 (+ |old(~a1~0)| 12))) .cse6) (or (not (= 6 |old(~a19~0)|)) (not (<= (+ |old(~a1~0)| 333899) 0)) .cse4 (and .cse7 (= ~a19~0 6) .cse8) (not (= 4 |old(~a10~0)|)) .cse6)))) [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:32:48,436 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:32:48,437 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:32:48,438 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:32:48,439 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:48,439 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-26 22:32:48,439 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:48,440 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse2 (= 7 ~a19~0)) (.cse0 (<= ~a1~0 505272)) (.cse1 (= ~a10~0 1)) (.cse3 (= 14 ~a4~0)) (.cse4 (= ~a12~0 0))) (or (and (= ~a10~0 3) .cse0) (= ~a19~0 8) (and (<= 0 (+ ~a1~0 12)) .cse1 .cse2 .cse3 (<= ~a1~0 33) .cse4) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (and .cse1 .cse2 .cse3 .cse4 (<= 221 ~a1~0)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) .cse0) (and .cse1 (<= 9 ~a19~0)) (and (<= (+ ~a1~0 333899) 0) .cse3 .cse4 (= ~a19~0 6) (= ~a10~0 4)) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:32:48,440 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:32:48,440 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:32:48,440 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (= 7 ~a19~0)) (.cse0 (<= ~a1~0 505272)) (.cse1 (= ~a10~0 1)) (.cse3 (= 14 ~a4~0)) (.cse4 (= ~a12~0 0))) (or (and (= ~a10~0 3) .cse0) (= ~a19~0 8) (and (<= 0 (+ ~a1~0 12)) .cse1 .cse2 .cse3 (<= ~a1~0 33) .cse4) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (and .cse1 .cse2 .cse3 .cse4 (<= 221 ~a1~0)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) .cse0) (and .cse1 (<= 9 ~a19~0)) (and (<= (+ ~a1~0 333899) 0) .cse3 .cse4 (= ~a19~0 6) (= ~a10~0 4)) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:32:48,440 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:48,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:32:48 BoogieIcfgContainer [2020-10-26 22:32:48,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:32:48,462 INFO L168 Benchmark]: Toolchain (without parser) took 82146.28 ms. Allocated memory was 154.1 MB in the beginning and 1.1 GB in the end (delta: 921.7 MB). Free memory was 107.2 MB in the beginning and 819.6 MB in the end (delta: -712.3 MB). Peak memory consumption was 623.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:48,463 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 154.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:32:48,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 852.26 ms. Allocated memory is still 154.1 MB. Free memory was 106.6 MB in the beginning and 125.4 MB in the end (delta: -18.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:48,464 INFO L168 Benchmark]: Boogie Preprocessor took 110.46 ms. Allocated memory is still 154.1 MB. Free memory was 125.4 MB in the beginning and 120.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:48,465 INFO L168 Benchmark]: RCFGBuilder took 1815.37 ms. Allocated memory was 154.1 MB in the beginning and 190.8 MB in the end (delta: 36.7 MB). Free memory was 120.9 MB in the beginning and 100.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:48,466 INFO L168 Benchmark]: TraceAbstraction took 79352.33 ms. Allocated memory was 190.8 MB in the beginning and 1.1 GB in the end (delta: 885.0 MB). Free memory was 100.4 MB in the beginning and 819.6 MB in the end (delta: -719.2 MB). Peak memory consumption was 578.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:48,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 154.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 852.26 ms. Allocated memory is still 154.1 MB. Free memory was 106.6 MB in the beginning and 125.4 MB in the end (delta: -18.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.46 ms. Allocated memory is still 154.1 MB. Free memory was 125.4 MB in the beginning and 120.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1815.37 ms. Allocated memory was 154.1 MB in the beginning and 190.8 MB in the end (delta: 36.7 MB). Free memory was 120.9 MB in the beginning and 100.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 79352.33 ms. Allocated memory was 190.8 MB in the beginning and 1.1 GB in the end (delta: 885.0 MB). Free memory was 100.4 MB in the beginning and 819.6 MB in the end (delta: -719.2 MB). Peak memory consumption was 578.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((((a10 == 3 && a1 <= 505272) || a19 == 8) || (((((0 <= a1 + 12 && a10 == 1) && 7 == a19) && 14 == a4) && a1 <= 33) && a12 == 0)) || a10 == 2) || !(9 == \old(a19))) || ((((a10 == 1 && 7 == a19) && 14 == a4) && a12 == 0) && 221 <= a1)) || a19 == 9) || !(0 == \old(a10))) || (a10 == 0 && a1 <= 505272)) || (a10 == 1 && 9 <= a19)) || ((((a1 + 333899 <= 0 && 14 == a4) && a12 == 0) && a19 == 6) && a10 == 4)) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 74.4s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 32.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 447 SDtfs, 5385 SDslu, 567 SDs, 0 SdLazy, 14533 SolverSat, 1534 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 266 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3861occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 1923 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 356 PreInvPairs, 428 NumberOfFragments, 607 HoareAnnotationTreeSize, 356 FomulaSimplifications, 104284 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7418 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 37.4s InterpolantComputationTime, 4578 NumberOfCodeBlocks, 4578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4562 ConstructedInterpolants, 0 QuantifiedInterpolants, 3064705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 4167/4357 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...