/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:21:11,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:21:11,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:21:11,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:21:11,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:21:11,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:21:11,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:21:11,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:21:11,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:21:11,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:21:11,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:21:11,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:21:11,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:21:11,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:21:11,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:21:11,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:21:11,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:21:11,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:21:11,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:21:11,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:21:11,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:21:11,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:21:11,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:21:11,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:21:11,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:21:11,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:21:11,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:21:11,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:21:11,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:21:11,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:21:11,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:21:11,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:21:11,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:21:11,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:21:11,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:21:11,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:21:11,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:21:11,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:21:11,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:21:11,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:21:11,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:21:11,277 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 [2020-10-14 19:21:11,301 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:21:11,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:21:11,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:21:11,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:21:11,302 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:21:11,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:21:11,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:21:11,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:21:11,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:21:11,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:21:11,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:21:11,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:21:11,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:21:11,304 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:21:11,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:21:11,305 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:21:11,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:21:11,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:21:11,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:21:11,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:21:11,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:21:11,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:21:11,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:21:11,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:21:11,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:21:11,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:21:11,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:21:11,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:21:11,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:21:11,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:21:11,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:21:11,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:21:11,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:21:11,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:21:11,646 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:21:11,647 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2020-10-14 19:21:11,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c068a8dc5/e2d2569fb39a4d70991378ca93767c23/FLAGdea4c403a [2020-10-14 19:21:12,498 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:21:12,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2020-10-14 19:21:12,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c068a8dc5/e2d2569fb39a4d70991378ca93767c23/FLAGdea4c403a [2020-10-14 19:21:12,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c068a8dc5/e2d2569fb39a4d70991378ca93767c23 [2020-10-14 19:21:12,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:21:12,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:21:12,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:21:12,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:21:12,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:21:12,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:21:12" (1/1) ... [2020-10-14 19:21:12,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a1b984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:12, skipping insertion in model container [2020-10-14 19:21:12,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:21:12" (1/1) ... [2020-10-14 19:21:12,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:21:12,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:21:14,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:21:14,413 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:21:15,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:21:15,054 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:21:15,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15 WrapperNode [2020-10-14 19:21:15,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:21:15,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:21:15,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:21:15,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:21:15,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (1/1) ... [2020-10-14 19:21:15,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:21:15,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:21:15,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:21:15,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:21:15,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (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 [2020-10-14 19:21:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:21:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:21:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:21:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:21:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:21:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:21:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:21:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:21:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:21:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:21:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:21:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:21:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:21:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:21:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:21:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:21:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:21:19,382 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:21:19,383 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:21:19,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:21:19 BoogieIcfgContainer [2020-10-14 19:21:19,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:21:19,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:21:19,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:21:19,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:21:19,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:21:12" (1/3) ... [2020-10-14 19:21:19,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db7f4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:21:19, skipping insertion in model container [2020-10-14 19:21:19,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:21:15" (2/3) ... [2020-10-14 19:21:19,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db7f4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:21:19, skipping insertion in model container [2020-10-14 19:21:19,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:21:19" (3/3) ... [2020-10-14 19:21:19,401 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label13.c [2020-10-14 19:21:19,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:21:19,419 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:21:19,433 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:21:19,463 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:21:19,463 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:21:19,463 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:21:19,463 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:21:19,463 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:21:19,464 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:21:19,464 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:21:19,464 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:21:19,501 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 19:21:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-10-14 19:21:19,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:21:19,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:21:19,541 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:21:19,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:21:19,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1474624405, now seen corresponding path program 1 times [2020-10-14 19:21:19,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:21:19,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940188099] [2020-10-14 19:21:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:21:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:20,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:25,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:25,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:25,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 804 [2020-10-14 19:21:25,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:21:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5185 [2020-10-14 19:21:25,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:25,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 19:21:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:21:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 798 [2020-10-14 19:21:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:21:26,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:21:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:26,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:26,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:26,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:21:26,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:26,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:21:26,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:26,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:26,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:21:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:21:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:21:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:21:26,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940188099] [2020-10-14 19:21:26,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:21:26,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 19:21:26,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635663040] [2020-10-14 19:21:26,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:21:26,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:21:26,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:21:26,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:21:26,941 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 5 states. [2020-10-14 19:21:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:21:39,190 INFO L93 Difference]: Finished difference Result 3521 states and 6821 transitions. [2020-10-14 19:21:39,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:21:39,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 790 [2020-10-14 19:21:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:21:39,238 INFO L225 Difference]: With dead ends: 3521 [2020-10-14 19:21:39,238 INFO L226 Difference]: Without dead ends: 2547 [2020-10-14 19:21:39,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:21:39,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2020-10-14 19:21:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2543. [2020-10-14 19:21:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2543 states. [2020-10-14 19:21:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 4215 transitions. [2020-10-14 19:21:39,443 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 4215 transitions. Word has length 790 [2020-10-14 19:21:39,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:21:39,446 INFO L479 AbstractCegarLoop]: Abstraction has 2543 states and 4215 transitions. [2020-10-14 19:21:39,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:21:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 4215 transitions. [2020-10-14 19:21:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-14 19:21:39,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:21:39,474 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:21:39,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:21:39,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:21:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:21:39,476 INFO L82 PathProgramCache]: Analyzing trace with hash -948049476, now seen corresponding path program 1 times [2020-10-14 19:21:39,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:21:39,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040028057] [2020-10-14 19:21:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:21:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:40,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:42,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:44,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:44,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-14 19:21:44,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:21:44,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-14 19:21:44,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:44,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:21:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 19:21:44,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 795 [2020-10-14 19:21:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 19:21:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:21:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:45,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:45,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:45,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:21:45,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:45,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:21:45,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:45,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:21:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:21:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:21:45,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:21:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:45,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:45,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:45,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:21:45,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:21:45,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:21:45,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:45,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:21:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:21:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:21:45,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:21:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:21:45,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040028057] [2020-10-14 19:21:45,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:21:45,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:21:45,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647059853] [2020-10-14 19:21:45,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:21:45,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:21:45,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:21:45,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:21:45,854 INFO L87 Difference]: Start difference. First operand 2543 states and 4215 transitions. Second operand 5 states. [2020-10-14 19:21:54,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:21:54,309 INFO L93 Difference]: Finished difference Result 7621 states and 12767 transitions. [2020-10-14 19:21:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:21:54,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 809 [2020-10-14 19:21:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:21:54,343 INFO L225 Difference]: With dead ends: 7621 [2020-10-14 19:21:54,343 INFO L226 Difference]: Without dead ends: 5084 [2020-10-14 19:21:54,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:21:54,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5084 states. [2020-10-14 19:21:54,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5084 to 5078. [2020-10-14 19:21:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-10-14 19:21:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 7448 transitions. [2020-10-14 19:21:54,478 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 7448 transitions. Word has length 809 [2020-10-14 19:21:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:21:54,480 INFO L479 AbstractCegarLoop]: Abstraction has 5078 states and 7448 transitions. [2020-10-14 19:21:54,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:21:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 7448 transitions. [2020-10-14 19:21:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-10-14 19:21:54,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:21:54,502 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:21:54,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:21:54,503 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:21:54,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:21:54,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1918520777, now seen corresponding path program 1 times [2020-10-14 19:21:54,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:21:54,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006734087] [2020-10-14 19:21:54,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:21:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:21:54,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:54,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:21:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:21:59,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-14 19:21:59,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:21:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 19:21:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:21:59,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:21:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 19:21:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:21:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 818 [2020-10-14 19:21:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:22:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:00,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:00,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:00,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:22:00,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:22:00,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:00,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:00,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:00,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:00,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:00,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:00,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:22:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:00,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:00,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:00,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:22:00,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:22:00,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:00,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:22:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:22:00,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:00,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:22:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:00,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:00,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:00,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:00,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:22:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:22:00,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 19:22:00,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:00,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:22:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:22:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 19:22:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:22:01,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006734087] [2020-10-14 19:22:01,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:22:01,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:22:01,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602494474] [2020-10-14 19:22:01,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:22:01,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:22:01,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:22:01,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:22:01,275 INFO L87 Difference]: Start difference. First operand 5078 states and 7448 transitions. Second operand 7 states. [2020-10-14 19:22:17,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:22:17,568 INFO L93 Difference]: Finished difference Result 20575 states and 31226 transitions. [2020-10-14 19:22:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:22:17,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 822 [2020-10-14 19:22:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:22:17,660 INFO L225 Difference]: With dead ends: 20575 [2020-10-14 19:22:17,660 INFO L226 Difference]: Without dead ends: 15503 [2020-10-14 19:22:17,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:22:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15503 states. [2020-10-14 19:22:18,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15503 to 15503. [2020-10-14 19:22:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15503 states. [2020-10-14 19:22:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15503 states to 15503 states and 22108 transitions. [2020-10-14 19:22:18,122 INFO L78 Accepts]: Start accepts. Automaton has 15503 states and 22108 transitions. Word has length 822 [2020-10-14 19:22:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:22:18,123 INFO L479 AbstractCegarLoop]: Abstraction has 15503 states and 22108 transitions. [2020-10-14 19:22:18,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:22:18,123 INFO L276 IsEmpty]: Start isEmpty. Operand 15503 states and 22108 transitions. [2020-10-14 19:22:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2020-10-14 19:22:18,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:22:18,323 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:22:18,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:22:18,324 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:22:18,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:22:18,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1842166963, now seen corresponding path program 1 times [2020-10-14 19:22:18,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:22:18,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256545394] [2020-10-14 19:22:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:22:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:18,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:18,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:21,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:23,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:23,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 847 [2020-10-14 19:22:23,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:22:23,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 19:22:23,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:23,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:22:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 19:22:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 795 [2020-10-14 19:22:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:23,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:22:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:23,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:23,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:23,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:22:23,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:23,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:22:23,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:23,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:23,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:22:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:23,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:22:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:22:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:23,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:22:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:23,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:24,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:24,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 19:22:24,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:24,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 19:22:24,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:24,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:22:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 19:22:24,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 19:22:24,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256545394] [2020-10-14 19:22:24,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:22:24,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:22:24,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717648682] [2020-10-14 19:22:24,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:22:24,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:22:24,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:22:24,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:22:24,595 INFO L87 Difference]: Start difference. First operand 15503 states and 22108 transitions. Second operand 5 states. [2020-10-14 19:22:34,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:22:34,493 INFO L93 Difference]: Finished difference Result 43802 states and 64472 transitions. [2020-10-14 19:22:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:22:34,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 829 [2020-10-14 19:22:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:22:34,601 INFO L225 Difference]: With dead ends: 43802 [2020-10-14 19:22:34,601 INFO L226 Difference]: Without dead ends: 28309 [2020-10-14 19:22:34,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:22:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28309 states. [2020-10-14 19:22:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28309 to 28309. [2020-10-14 19:22:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28309 states. [2020-10-14 19:22:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28309 states to 28309 states and 38116 transitions. [2020-10-14 19:22:35,385 INFO L78 Accepts]: Start accepts. Automaton has 28309 states and 38116 transitions. Word has length 829 [2020-10-14 19:22:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:22:35,387 INFO L479 AbstractCegarLoop]: Abstraction has 28309 states and 38116 transitions. [2020-10-14 19:22:35,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:22:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 28309 states and 38116 transitions. [2020-10-14 19:22:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2020-10-14 19:22:35,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:22:35,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:22:35,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:22:35,487 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:22:35,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:22:35,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1870251127, now seen corresponding path program 1 times [2020-10-14 19:22:35,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:22:35,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795344864] [2020-10-14 19:22:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:22:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:35,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:39,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:40,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:40,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 877 [2020-10-14 19:22:40,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:22:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 19:22:40,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:40,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:22:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 19:22:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 795 [2020-10-14 19:22:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:40,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:22:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:40,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:40,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:40,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:22:40,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:22:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:40,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:40,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:22:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:40,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:40,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:40,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:22:40,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:40,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:22:40,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:40,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:40,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:40,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:22:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:40,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:40,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:40,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:22:40,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 19:22:40,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:40,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:22:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 19:22:40,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 19:22:41,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795344864] [2020-10-14 19:22:41,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:22:41,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:22:41,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704166922] [2020-10-14 19:22:41,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:22:41,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:22:41,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:22:41,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:22:41,555 INFO L87 Difference]: Start difference. First operand 28309 states and 38116 transitions. Second operand 5 states. [2020-10-14 19:22:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:22:50,786 INFO L93 Difference]: Finished difference Result 71882 states and 100387 transitions. [2020-10-14 19:22:50,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:22:50,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 859 [2020-10-14 19:22:50,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:22:50,929 INFO L225 Difference]: With dead ends: 71882 [2020-10-14 19:22:50,929 INFO L226 Difference]: Without dead ends: 43583 [2020-10-14 19:22:51,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:22:51,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43583 states. [2020-10-14 19:22:51,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43583 to 43581. [2020-10-14 19:22:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43581 states. [2020-10-14 19:22:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43581 states to 43581 states and 57375 transitions. [2020-10-14 19:22:51,830 INFO L78 Accepts]: Start accepts. Automaton has 43581 states and 57375 transitions. Word has length 859 [2020-10-14 19:22:51,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:22:51,831 INFO L479 AbstractCegarLoop]: Abstraction has 43581 states and 57375 transitions. [2020-10-14 19:22:51,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:22:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 43581 states and 57375 transitions. [2020-10-14 19:22:51,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2020-10-14 19:22:51,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:22:51,924 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:22:51,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:22:51,925 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:22:51,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:22:51,925 INFO L82 PathProgramCache]: Analyzing trace with hash 27846508, now seen corresponding path program 1 times [2020-10-14 19:22:51,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:22:51,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051815644] [2020-10-14 19:22:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:22:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:52,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:52,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:57,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:57,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 900 [2020-10-14 19:22:57,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:22:57,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 19:22:57,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:57,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:22:57,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:22:57,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 19:22:57,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:57,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:22:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:57,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:57,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:57,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:22:57,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:22:57,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:57,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:57,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:57,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:22:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:57,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:57,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:22:57,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:22:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:57,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:22:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:22:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:22:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:57,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:22:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:57,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:57,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:57,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:22:57,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 19:22:57,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:57,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:22:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:22:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 19:22:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:22:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 19:22:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:22:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:22:57,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:22:57,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:22:57,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:22:57,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:22:57,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:22:57,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:22:57,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:22:57,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 19:22:57,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:22:57,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:22:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 93 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 19:22:57,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051815644] [2020-10-14 19:22:57,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:22:57,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:22:57,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526096440] [2020-10-14 19:22:57,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:22:57,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:22:57,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:22:57,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:22:57,642 INFO L87 Difference]: Start difference. First operand 43581 states and 57375 transitions. Second operand 8 states. [2020-10-14 19:23:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:23:12,749 INFO L93 Difference]: Finished difference Result 108105 states and 146819 transitions. [2020-10-14 19:23:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 19:23:12,755 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 880 [2020-10-14 19:23:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:23:12,962 INFO L225 Difference]: With dead ends: 108105 [2020-10-14 19:23:12,962 INFO L226 Difference]: Without dead ends: 64534 [2020-10-14 19:23:13,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 19:23:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64534 states. [2020-10-14 19:23:14,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64534 to 64381. [2020-10-14 19:23:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64381 states. [2020-10-14 19:23:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64381 states to 64381 states and 81178 transitions. [2020-10-14 19:23:14,305 INFO L78 Accepts]: Start accepts. Automaton has 64381 states and 81178 transitions. Word has length 880 [2020-10-14 19:23:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:23:14,306 INFO L479 AbstractCegarLoop]: Abstraction has 64381 states and 81178 transitions. [2020-10-14 19:23:14,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:23:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 64381 states and 81178 transitions. [2020-10-14 19:23:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2020-10-14 19:23:14,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:23:14,498 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:23:14,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:23:14,498 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:23:14,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:23:14,499 INFO L82 PathProgramCache]: Analyzing trace with hash -471180911, now seen corresponding path program 1 times [2020-10-14 19:23:14,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:23:14,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883635722] [2020-10-14 19:23:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:23:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:14,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:18,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:18,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:19,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:19,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 937 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 795 [2020-10-14 19:23:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:23:20,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:23:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:20,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:20,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:23:20,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:23:20,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:20,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:23:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:23:20,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:23:20,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:23:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:20,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:20,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:20,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 19:23:20,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:20,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 19:23:20,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:20,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:20,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:23:20,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:23:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:23:20,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 19:23:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:20,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:20,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:23:20,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:20,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 19:23:20,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:20,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:23:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 19:23:20,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:23:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 19:23:20,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883635722] [2020-10-14 19:23:20,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:23:20,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:23:20,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151830568] [2020-10-14 19:23:20,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:23:20,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:23:20,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:23:20,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:23:20,948 INFO L87 Difference]: Start difference. First operand 64381 states and 81178 transitions. Second operand 5 states. [2020-10-14 19:23:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:23:31,090 INFO L93 Difference]: Finished difference Result 149024 states and 191588 transitions. [2020-10-14 19:23:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:23:31,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 919 [2020-10-14 19:23:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:23:31,363 INFO L225 Difference]: With dead ends: 149024 [2020-10-14 19:23:31,364 INFO L226 Difference]: Without dead ends: 84653 [2020-10-14 19:23:31,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:23:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84653 states. [2020-10-14 19:23:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84653 to 82967. [2020-10-14 19:23:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82967 states. [2020-10-14 19:23:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82967 states to 82967 states and 107766 transitions. [2020-10-14 19:23:32,827 INFO L78 Accepts]: Start accepts. Automaton has 82967 states and 107766 transitions. Word has length 919 [2020-10-14 19:23:32,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:23:32,827 INFO L479 AbstractCegarLoop]: Abstraction has 82967 states and 107766 transitions. [2020-10-14 19:23:32,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:23:32,828 INFO L276 IsEmpty]: Start isEmpty. Operand 82967 states and 107766 transitions. [2020-10-14 19:23:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2020-10-14 19:23:32,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:23:32,953 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:23:32,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:23:32,953 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:23:32,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:23:32,954 INFO L82 PathProgramCache]: Analyzing trace with hash -290904258, now seen corresponding path program 1 times [2020-10-14 19:23:32,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:23:32,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617808275] [2020-10-14 19:23:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:23:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:33,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:35,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:38,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:38,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 998 [2020-10-14 19:23:38,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:23:38,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 19:23:38,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:38,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 19:23:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-10-14 19:23:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 590 [2020-10-14 19:23:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:23:41,329 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2020-10-14 19:23:41,474 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2020-10-14 19:23:41,608 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2020-10-14 19:23:41,747 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2020-10-14 19:23:41,895 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2020-10-14 19:23:42,085 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2020-10-14 19:23:42,327 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-10-14 19:23:42,533 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-10-14 19:23:42,770 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 51 [2020-10-14 19:23:43,090 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 51 [2020-10-14 19:23:43,423 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 47 [2020-10-14 19:23:43,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:23:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:43,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:43,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:43,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:23:43,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:43,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:23:43,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:43,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:23:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:23:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:23:43,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:23:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:43,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:43,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:23:43,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:43,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:23:43,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:43,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:23:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:23:43,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:23:43,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 19:23:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:43,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:43,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 19:23:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:23:43,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:43,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:23:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:43,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:23:43,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:23:43,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 19:23:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:23:43,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:23:43,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:23:43,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 19:23:43,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:23:43,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 19:23:43,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:23:43,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:23:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:23:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:23:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 19:23:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:23:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 182 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-14 19:23:50,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617808275] [2020-10-14 19:23:50,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:23:50,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 19:23:50,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097759391] [2020-10-14 19:23:50,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 19:23:50,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:23:50,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 19:23:50,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2020-10-14 19:23:50,203 INFO L87 Difference]: Start difference. First operand 82967 states and 107766 transitions. Second operand 17 states. [2020-10-14 19:23:53,606 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-14 19:23:55,098 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 19:24:00,733 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-14 19:24:00,900 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 19:24:04,956 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 19:24:06,279 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2020-10-14 19:24:08,900 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 19:24:09,129 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 19:24:09,815 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2020-10-14 19:24:13,139 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 106 [2020-10-14 19:24:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:24:15,537 INFO L93 Difference]: Finished difference Result 166518 states and 217265 transitions. [2020-10-14 19:24:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 19:24:15,538 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 978 [2020-10-14 19:24:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:24:15,798 INFO L225 Difference]: With dead ends: 166518 [2020-10-14 19:24:15,798 INFO L226 Difference]: Without dead ends: 83561 [2020-10-14 19:24:15,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2020-10-14 19:24:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83561 states. [2020-10-14 19:24:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83561 to 83556. [2020-10-14 19:24:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83556 states. [2020-10-14 19:24:16,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83556 states to 83556 states and 108382 transitions. [2020-10-14 19:24:16,952 INFO L78 Accepts]: Start accepts. Automaton has 83556 states and 108382 transitions. Word has length 978 [2020-10-14 19:24:16,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:24:16,953 INFO L479 AbstractCegarLoop]: Abstraction has 83556 states and 108382 transitions. [2020-10-14 19:24:16,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 19:24:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 83556 states and 108382 transitions. [2020-10-14 19:24:17,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2020-10-14 19:24:17,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:24:17,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:24:17,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:24:17,075 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:24:17,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:24:17,076 INFO L82 PathProgramCache]: Analyzing trace with hash -461839168, now seen corresponding path program 1 times [2020-10-14 19:24:17,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:24:17,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399769965] [2020-10-14 19:24:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:24:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:17,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:22,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:22,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1099 [2020-10-14 19:24:22,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:24:22,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-14 19:24:22,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:22,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:22,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:24:22,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:24:22,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 296 [2020-10-14 19:24:22,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:24:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:24:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:22,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:22,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:24:22,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:22,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:24:22,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:22,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:24:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:24:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:24:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:24:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:23,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:23,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-14 19:24:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-14 19:24:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:23,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:24:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:24:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-14 19:24:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:23,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 19:24:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:23,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:23,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:23,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 19:24:23,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 19:24:23,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:23,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:24:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:24:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 19:24:23,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:24:23,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399769965] [2020-10-14 19:24:23,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:24:23,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 19:24:23,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130514280] [2020-10-14 19:24:23,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:24:23,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:24:23,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:24:23,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:24:23,914 INFO L87 Difference]: Start difference. First operand 83556 states and 108382 transitions. Second operand 8 states. [2020-10-14 19:24:38,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:24:38,488 INFO L93 Difference]: Finished difference Result 167774 states and 220634 transitions. [2020-10-14 19:24:38,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 19:24:38,488 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1081 [2020-10-14 19:24:38,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:24:38,722 INFO L225 Difference]: With dead ends: 167774 [2020-10-14 19:24:38,723 INFO L226 Difference]: Without dead ends: 84228 [2020-10-14 19:24:38,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 19:24:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84228 states. [2020-10-14 19:24:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84228 to 84079. [2020-10-14 19:24:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84079 states. [2020-10-14 19:24:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84079 states to 84079 states and 100238 transitions. [2020-10-14 19:24:39,822 INFO L78 Accepts]: Start accepts. Automaton has 84079 states and 100238 transitions. Word has length 1081 [2020-10-14 19:24:39,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:24:39,822 INFO L479 AbstractCegarLoop]: Abstraction has 84079 states and 100238 transitions. [2020-10-14 19:24:39,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:24:39,822 INFO L276 IsEmpty]: Start isEmpty. Operand 84079 states and 100238 transitions. [2020-10-14 19:24:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2020-10-14 19:24:39,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:24:39,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:24:39,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:24:39,950 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:24:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:24:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1525332963, now seen corresponding path program 1 times [2020-10-14 19:24:39,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:24:39,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497562294] [2020-10-14 19:24:39,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:24:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:40,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:40,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1226 [2020-10-14 19:24:45,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:24:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 19:24:45,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:45,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 19:24:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 427 [2020-10-14 19:24:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 798 [2020-10-14 19:24:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:45,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:24:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:24:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:24:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:24:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:45,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:24:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:45,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:45,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:45,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 19:24:45,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:45,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 19:24:45,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:45,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:24:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:24:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:24:45,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:45,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 19:24:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:45,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-14 19:24:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 19:24:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:46,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:24:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:24:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-14 19:24:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:24:46,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 19:24:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:24:46,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:24:46,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:24:46,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 19:24:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0