/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/Problem18_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:53:38,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:53:38,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:53:38,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:53:38,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:53:38,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:53:38,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:53:38,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:53:38,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:53:38,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:53:38,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:53:38,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:53:38,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:53:38,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:53:38,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:53:38,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:53:38,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:53:38,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:53:38,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:53:38,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:53:38,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:53:38,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:53:38,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:53:38,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:53:38,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:53:38,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:53:38,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:53:38,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:53:38,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:53:38,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:53:38,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:53:38,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:53:38,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:53:38,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:53:38,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:53:38,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:53:38,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:53:38,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:53:38,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:53:38,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:53:38,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:53:38,336 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 22:53:38,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:53:38,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:53:38,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:53:38,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:53:38,362 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:53:38,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:53:38,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:53:38,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:53:38,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:53:38,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:53:38,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:53:38,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:53:38,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:53:38,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:53:38,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:53:38,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:53:38,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:53:38,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:53:38,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:53:38,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:53:38,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:53:38,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:53:38,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:53:38,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:53:38,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:53:38,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:53:38,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:53:38,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:53:38,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:53:38,367 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 22:53:38,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:53:38,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:53:38,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:53:38,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:53:38,730 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:53:38,731 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label52.c [2020-10-14 22:53:38,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfed0f24a/8c8f6b93031b47bdb5e5bb8e8cb6a2aa/FLAG97447343b [2020-10-14 22:53:39,621 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:53:39,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label52.c [2020-10-14 22:53:39,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfed0f24a/8c8f6b93031b47bdb5e5bb8e8cb6a2aa/FLAG97447343b [2020-10-14 22:53:40,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfed0f24a/8c8f6b93031b47bdb5e5bb8e8cb6a2aa [2020-10-14 22:53:40,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:53:40,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:53:40,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:53:40,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:53:40,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:53:40,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:53:40" (1/1) ... [2020-10-14 22:53:40,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2842025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:40, skipping insertion in model container [2020-10-14 22:53:40,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:53:40" (1/1) ... [2020-10-14 22:53:40,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:53:40,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:53:41,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:53:41,944 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:53:42,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:53:42,498 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:53:42,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42 WrapperNode [2020-10-14 22:53:42,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:53:42,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:53:42,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:53:42,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:53:42,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (1/1) ... [2020-10-14 22:53:42,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:53:42,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:53:42,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:53:42,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:53:42,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (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 22:53:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:53:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:53:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:53:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:53:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:53:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:53:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:53:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:53:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:53:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:53:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:53:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:53:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:53:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:53:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:53:49,229 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:53:49,230 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:53:49,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:53:49 BoogieIcfgContainer [2020-10-14 22:53:49,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:53:49,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:53:49,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:53:49,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:53:49,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:53:40" (1/3) ... [2020-10-14 22:53:49,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299a2980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:53:49, skipping insertion in model container [2020-10-14 22:53:49,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:42" (2/3) ... [2020-10-14 22:53:49,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299a2980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:53:49, skipping insertion in model container [2020-10-14 22:53:49,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:53:49" (3/3) ... [2020-10-14 22:53:49,249 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label52.c [2020-10-14 22:53:49,261 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:53:49,271 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:53:49,285 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:53:49,314 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:53:49,314 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:53:49,314 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:53:49,315 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:53:49,315 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:53:49,315 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:53:49,315 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:53:49,315 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:53:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:53:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 22:53:49,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:49,364 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] [2020-10-14 22:53:49,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:49,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:49,371 INFO L82 PathProgramCache]: Analyzing trace with hash -338918247, now seen corresponding path program 1 times [2020-10-14 22:53:49,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:49,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552943032] [2020-10-14 22:53:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:49,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:49,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:49,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 22:53:49,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:49,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-14 22:53:49,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:49,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:49,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:53:49,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:53:49,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 22:53:49,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:53:49,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:50,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:50,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:50,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:50,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:53:50,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:50,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:53:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:50,033 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 22:53:50,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552943032] [2020-10-14 22:53:50,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:53:50,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:53:50,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887225720] [2020-10-14 22:53:50,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:53:50,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:50,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:53:50,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:53:50,066 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:53:58,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:58,104 INFO L93 Difference]: Finished difference Result 2286 states and 4364 transitions. [2020-10-14 22:53:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:53:58,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-14 22:53:58,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:58,148 INFO L225 Difference]: With dead ends: 2286 [2020-10-14 22:53:58,149 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:53:58,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:53:58,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:53:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2020-10-14 22:53:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-14 22:53:58,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2262 transitions. [2020-10-14 22:53:58,312 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2262 transitions. Word has length 22 [2020-10-14 22:53:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:58,313 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 2262 transitions. [2020-10-14 22:53:58,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:53:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2262 transitions. [2020-10-14 22:53:58,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 22:53:58,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:58,319 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:53:58,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:53:58,319 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:58,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:58,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1998987061, now seen corresponding path program 1 times [2020-10-14 22:53:58,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:58,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381032322] [2020-10-14 22:53:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:58,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:59,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:59,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:53:59,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:53:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 944 [2020-10-14 22:53:59,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:59,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:59,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:53:59,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:53:59,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:53:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:53:59,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:59,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:59,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:59,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:59,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:53:59,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:59,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:59,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:59,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:59,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:53:59,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:53:59,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:59,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:59,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:59,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:53:59,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 22:53:59,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:59,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:53:59,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:53:59,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381032322] [2020-10-14 22:53:59,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:53:59,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:53:59,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295174665] [2020-10-14 22:53:59,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:53:59,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:59,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:53:59,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:53:59,686 INFO L87 Difference]: Start difference. First operand 1428 states and 2262 transitions. Second operand 8 states. [2020-10-14 22:54:17,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:17,060 INFO L93 Difference]: Finished difference Result 5784 states and 9263 transitions. [2020-10-14 22:54:17,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:54:17,062 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2020-10-14 22:54:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:17,088 INFO L225 Difference]: With dead ends: 5784 [2020-10-14 22:54:17,089 INFO L226 Difference]: Without dead ends: 4362 [2020-10-14 22:54:17,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 22:54:17,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4362 states. [2020-10-14 22:54:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4362 to 4345. [2020-10-14 22:54:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4345 states. [2020-10-14 22:54:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 5980 transitions. [2020-10-14 22:54:17,264 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 5980 transitions. Word has length 91 [2020-10-14 22:54:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:17,265 INFO L479 AbstractCegarLoop]: Abstraction has 4345 states and 5980 transitions. [2020-10-14 22:54:17,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:54:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 5980 transitions. [2020-10-14 22:54:17,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 22:54:17,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:17,280 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:17,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:54:17,281 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:17,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:17,284 INFO L82 PathProgramCache]: Analyzing trace with hash 130015674, now seen corresponding path program 1 times [2020-10-14 22:54:17,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:17,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420383425] [2020-10-14 22:54:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:17,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:18,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:20,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:20,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-14 22:54:20,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:54:20,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2769 [2020-10-14 22:54:20,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:20,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:54:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:20,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:20,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:20,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:20,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:20,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:20,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:54:20,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:20,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:20,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:20,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:20,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:20,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:20,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:54:20,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 22:54:20,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:20,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:54:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:20,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:54:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:20,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:20,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:20,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:54:20,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:54:20,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:20,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 22:54:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:20,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:54:20,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420383425] [2020-10-14 22:54:20,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:20,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:54:20,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357495048] [2020-10-14 22:54:20,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:54:20,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:20,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:54:20,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:54:20,869 INFO L87 Difference]: Start difference. First operand 4345 states and 5980 transitions. Second operand 8 states. [2020-10-14 22:54:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:31,088 INFO L93 Difference]: Finished difference Result 11077 states and 14957 transitions. [2020-10-14 22:54:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:54:31,091 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 217 [2020-10-14 22:54:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:31,124 INFO L225 Difference]: With dead ends: 11077 [2020-10-14 22:54:31,125 INFO L226 Difference]: Without dead ends: 6738 [2020-10-14 22:54:31,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:54:31,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6738 states. [2020-10-14 22:54:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6738 to 6621. [2020-10-14 22:54:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6621 states. [2020-10-14 22:54:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6621 states to 6621 states and 8690 transitions. [2020-10-14 22:54:31,337 INFO L78 Accepts]: Start accepts. Automaton has 6621 states and 8690 transitions. Word has length 217 [2020-10-14 22:54:31,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:31,340 INFO L479 AbstractCegarLoop]: Abstraction has 6621 states and 8690 transitions. [2020-10-14 22:54:31,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:54:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 6621 states and 8690 transitions. [2020-10-14 22:54:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-14 22:54:31,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:31,347 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:54:31,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:54:31,349 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:31,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:31,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1733856985, now seen corresponding path program 1 times [2020-10-14 22:54:31,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:31,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328683228] [2020-10-14 22:54:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:31,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:31,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:34,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-14 22:54:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:54:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2849 [2020-10-14 22:54:34,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:34,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:54:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:54:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:54:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:34,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:34,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:34,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:54:34,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:34,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:34,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:54:34,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:34,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:34,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:34,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:54:34,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:34,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-10-14 22:54:34,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:34,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:34,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:54:34,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:35,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:35,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:35,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:54:35,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:35,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:54:35,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:35,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:54:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:54:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:54:35,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328683228] [2020-10-14 22:54:35,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:54:35,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:54:35,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898390072] [2020-10-14 22:54:35,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:54:35,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:35,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:54:35,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:54:35,757 INFO L87 Difference]: Start difference. First operand 6621 states and 8690 transitions. Second operand 8 states. [2020-10-14 22:54:48,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:48,024 INFO L93 Difference]: Finished difference Result 18670 states and 25322 transitions. [2020-10-14 22:54:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:54:48,026 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 329 [2020-10-14 22:54:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:48,082 INFO L225 Difference]: With dead ends: 18670 [2020-10-14 22:54:48,083 INFO L226 Difference]: Without dead ends: 12055 [2020-10-14 22:54:48,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:54:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12055 states. [2020-10-14 22:54:48,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12055 to 11902. [2020-10-14 22:54:48,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11902 states. [2020-10-14 22:54:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11902 states to 11902 states and 15093 transitions. [2020-10-14 22:54:48,484 INFO L78 Accepts]: Start accepts. Automaton has 11902 states and 15093 transitions. Word has length 329 [2020-10-14 22:54:48,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:48,488 INFO L479 AbstractCegarLoop]: Abstraction has 11902 states and 15093 transitions. [2020-10-14 22:54:48,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:54:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 11902 states and 15093 transitions. [2020-10-14 22:54:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2020-10-14 22:54:48,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:48,502 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 22:54:48,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:54:48,503 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:48,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:48,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1430821580, now seen corresponding path program 1 times [2020-10-14 22:54:48,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:48,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652166551] [2020-10-14 22:54:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:48,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:49,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:49,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:52,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:52,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 529 [2020-10-14 22:54:52,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4364 [2020-10-14 22:54:52,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:52,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:52,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:52,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:54:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 309 [2020-10-14 22:54:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:53,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:53,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:54:53,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:53,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:53,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:54:53,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 22:54:53,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:54:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:53,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:54:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:54:53,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-14 22:54:53,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:53,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:54:53,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:53,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:54:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:54:54,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:54:54,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:54:54,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:54,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:54:54,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:54:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 213 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:54:54,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652166551] [2020-10-14 22:54:54,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:54,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:54:54,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139316447] [2020-10-14 22:54:54,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:54:54,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:54:54,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:54:54,866 INFO L87 Difference]: Start difference. First operand 11902 states and 15093 transitions. Second operand 8 states. [2020-10-14 22:55:13,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:13,465 INFO L93 Difference]: Finished difference Result 38651 states and 51575 transitions. [2020-10-14 22:55:13,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:55:13,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 515 [2020-10-14 22:55:13,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:13,545 INFO L225 Difference]: With dead ends: 38651 [2020-10-14 22:55:13,546 INFO L226 Difference]: Without dead ends: 23345 [2020-10-14 22:55:13,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 22:55:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23345 states. [2020-10-14 22:55:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23345 to 22539. [2020-10-14 22:55:13,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22539 states. [2020-10-14 22:55:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22539 states to 22539 states and 25177 transitions. [2020-10-14 22:55:14,026 INFO L78 Accepts]: Start accepts. Automaton has 22539 states and 25177 transitions. Word has length 515 [2020-10-14 22:55:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:14,027 INFO L479 AbstractCegarLoop]: Abstraction has 22539 states and 25177 transitions. [2020-10-14 22:55:14,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:55:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 22539 states and 25177 transitions. [2020-10-14 22:55:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2020-10-14 22:55:14,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:14,063 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:55:14,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:55:14,063 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:14,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1808601214, now seen corresponding path program 1 times [2020-10-14 22:55:14,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:14,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302707841] [2020-10-14 22:55:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:14,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:14,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:17,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:17,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 966 [2020-10-14 22:55:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:55:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3602 [2020-10-14 22:55:17,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:17,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:55:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:55:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:18,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:18,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:55:18,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:18,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:18,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:18,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:55:18,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-14 22:55:18,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:18,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:18,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:18,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:55:18,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:18,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:55:18,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:18,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:18,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:18,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:18,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:18,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:18,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:55:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:18,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:18,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:55:18,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:18,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:55:18,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:18,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:18,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:18,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:55:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:18,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:18,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:55:18,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:18,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 22:55:18,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:18,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:18,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:55:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:19,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:19,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:19,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:19,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:55:19,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:19,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:55:19,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:19,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:19,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:19,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:19,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:55:19,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:19,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:55:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:19,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:19,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:19,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:55:19,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:19,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:55:19,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:19,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:55:19,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 227 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:55:19,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302707841] [2020-10-14 22:55:19,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:19,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:19,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508652032] [2020-10-14 22:55:19,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:19,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:19,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:19,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:19,595 INFO L87 Difference]: Start difference. First operand 22539 states and 25177 transitions. Second operand 7 states. [2020-10-14 22:55:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:33,053 INFO L93 Difference]: Finished difference Result 53156 states and 60830 transitions. [2020-10-14 22:55:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:55:33,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 946 [2020-10-14 22:55:33,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:33,151 INFO L225 Difference]: With dead ends: 53156 [2020-10-14 22:55:33,152 INFO L226 Difference]: Without dead ends: 30623 [2020-10-14 22:55:33,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30623 states. [2020-10-14 22:55:33,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30623 to 30516. [2020-10-14 22:55:33,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30516 states. [2020-10-14 22:55:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30516 states to 30516 states and 34611 transitions. [2020-10-14 22:55:33,766 INFO L78 Accepts]: Start accepts. Automaton has 30516 states and 34611 transitions. Word has length 946 [2020-10-14 22:55:33,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:33,769 INFO L479 AbstractCegarLoop]: Abstraction has 30516 states and 34611 transitions. [2020-10-14 22:55:33,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 30516 states and 34611 transitions. [2020-10-14 22:55:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2020-10-14 22:55:33,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:33,820 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:55:33,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:55:33,821 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:33,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:33,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1164903292, now seen corresponding path program 1 times [2020-10-14 22:55:33,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:33,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516645473] [2020-10-14 22:55:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:34,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:35,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:36,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:39,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:39,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1065 [2020-10-14 22:55:39,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:55:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-14 22:55:39,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:39,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:39,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:55:39,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:55:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:39,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:39,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:39,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:39,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:39,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:55:39,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:39,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:55:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:39,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:39,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:39,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:55:39,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 22:55:39,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:39,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:39,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:39,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:39,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:39,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:55:39,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:39,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:55:39,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:39,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:55:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:40,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:40,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:40,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:55:40,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:55:40,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:40,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:40,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:55:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:40,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:40,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:40,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:55:40,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 22:55:40,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:40,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:40,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:40,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:40,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:55:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:55:40,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:40,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:40,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:55:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:40,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:40,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:55:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:55:40,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:40,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:55:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:40,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:55:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:40,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:41,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:41,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:55:41,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 22:55:41,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:41,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:55:41,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-14 22:55:41,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516645473] [2020-10-14 22:55:41,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:41,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:41,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803216722] [2020-10-14 22:55:41,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:41,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:41,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:41,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:41,713 INFO L87 Difference]: Start difference. First operand 30516 states and 34611 transitions. Second operand 7 states. [2020-10-14 22:55:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:50,442 INFO L93 Difference]: Finished difference Result 64641 states and 74233 transitions. [2020-10-14 22:55:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:55:50,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1043 [2020-10-14 22:55:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:50,547 INFO L225 Difference]: With dead ends: 64641 [2020-10-14 22:55:50,548 INFO L226 Difference]: Without dead ends: 34131 [2020-10-14 22:55:50,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:55:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34131 states. [2020-10-14 22:55:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34131 to 34074. [2020-10-14 22:55:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34074 states. [2020-10-14 22:55:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34074 states to 34074 states and 38370 transitions. [2020-10-14 22:55:51,125 INFO L78 Accepts]: Start accepts. Automaton has 34074 states and 38370 transitions. Word has length 1043 [2020-10-14 22:55:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:51,127 INFO L479 AbstractCegarLoop]: Abstraction has 34074 states and 38370 transitions. [2020-10-14 22:55:51,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 34074 states and 38370 transitions. [2020-10-14 22:55:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2020-10-14 22:55:51,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:51,145 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:55:51,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:55:51,145 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:51,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:51,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1575121589, now seen corresponding path program 1 times [2020-10-14 22:55:51,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:51,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876584404] [2020-10-14 22:55:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:51,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:52,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:56,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1106 [2020-10-14 22:55:56,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:55:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 22:55:56,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:56,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:55:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:55:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:56,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:56,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:56,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:55:56,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:56,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:56,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:56,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:56,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:55:56,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:56,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:55:56,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:56,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:56,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:56,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:56,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:55:56,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:55:56,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:56,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:56,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:55:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:56,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:56,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:56,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:55:56,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:57,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:55:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:57,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:57,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:57,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:55:57,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:55:57,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:57,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:55:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:57,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:57,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:57,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:55:57,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:55:57,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:57,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:55:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:55:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:57,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:57,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:55:57,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:57,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:55:57,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:57,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:55:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:57,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-14 22:55:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:57,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 22:55:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 314 proven. 105 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2020-10-14 22:55:58,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876584404] [2020-10-14 22:55:58,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:58,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:58,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066373343] [2020-10-14 22:55:58,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:58,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:58,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:58,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:58,221 INFO L87 Difference]: Start difference. First operand 34074 states and 38370 transitions. Second operand 7 states. [2020-10-14 22:56:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:09,005 INFO L93 Difference]: Finished difference Result 74047 states and 85415 transitions. [2020-10-14 22:56:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:56:09,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1084 [2020-10-14 22:56:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:09,140 INFO L225 Difference]: With dead ends: 74047 [2020-10-14 22:56:09,141 INFO L226 Difference]: Without dead ends: 39979 [2020-10-14 22:56:09,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:56:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39979 states. [2020-10-14 22:56:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39979 to 38302. [2020-10-14 22:56:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38302 states. [2020-10-14 22:56:09,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38302 states to 38302 states and 42638 transitions. [2020-10-14 22:56:09,848 INFO L78 Accepts]: Start accepts. Automaton has 38302 states and 42638 transitions. Word has length 1084 [2020-10-14 22:56:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:09,850 INFO L479 AbstractCegarLoop]: Abstraction has 38302 states and 42638 transitions. [2020-10-14 22:56:09,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 38302 states and 42638 transitions. [2020-10-14 22:56:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2020-10-14 22:56:09,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:09,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:56:09,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:56:09,870 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:09,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1981166097, now seen corresponding path program 1 times [2020-10-14 22:56:09,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:09,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731428195] [2020-10-14 22:56:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:10,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1132 [2020-10-14 22:56:11,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-10-14 22:56:11,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:56:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 22:56:11,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:11,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:11,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:11,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:11,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:56:11,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:11,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:11,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:11,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:11,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:56:11,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:11,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:56:11,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:56:11,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:11,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:56:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:11,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:11,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:11,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:11,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:56:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:12,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:12,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:12,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:56:12,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:56:12,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:12,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:56:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 65 proven. 4 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2020-10-14 22:56:13,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731428195] [2020-10-14 22:56:13,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:13,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:56:13,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849974115] [2020-10-14 22:56:13,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:56:13,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:13,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:56:13,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:56:13,433 INFO L87 Difference]: Start difference. First operand 38302 states and 42638 transitions. Second operand 5 states. [2020-10-14 22:56:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:20,418 INFO L93 Difference]: Finished difference Result 81559 states and 91268 transitions. [2020-10-14 22:56:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:56:20,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1110 [2020-10-14 22:56:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:20,526 INFO L225 Difference]: With dead ends: 81559 [2020-10-14 22:56:20,527 INFO L226 Difference]: Without dead ends: 43263 [2020-10-14 22:56:20,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:56:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43263 states. [2020-10-14 22:56:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43263 to 43229. [2020-10-14 22:56:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43229 states. [2020-10-14 22:56:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43229 states to 43229 states and 47909 transitions. [2020-10-14 22:56:21,476 INFO L78 Accepts]: Start accepts. Automaton has 43229 states and 47909 transitions. Word has length 1110 [2020-10-14 22:56:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:21,477 INFO L479 AbstractCegarLoop]: Abstraction has 43229 states and 47909 transitions. [2020-10-14 22:56:21,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:56:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 43229 states and 47909 transitions. [2020-10-14 22:56:21,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1178 [2020-10-14 22:56:21,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:21,511 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:56:21,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:56:21,511 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:21,512 INFO L82 PathProgramCache]: Analyzing trace with hash 670882255, now seen corresponding path program 1 times [2020-10-14 22:56:21,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:21,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763315058] [2020-10-14 22:56:21,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:21,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:22,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:24,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:26,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:26,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1199 [2020-10-14 22:56:26,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:56:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5167 [2020-10-14 22:56:26,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:26,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-14 22:56:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 22:56:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:27,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:56:27,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:27,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:56:27,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:27,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:56:27,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:56:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:56:27,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:56:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:56:27,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:56:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:56:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:56:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:56:27,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:56:27,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:27,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:27,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:56:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:27,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:27,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:27,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 22:56:27,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 22:56:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:27,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 22:56:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 567 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-14 22:56:28,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763315058] [2020-10-14 22:56:28,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:28,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:28,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854546310] [2020-10-14 22:56:28,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:28,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:28,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:28,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:28,542 INFO L87 Difference]: Start difference. First operand 43229 states and 47909 transitions. Second operand 7 states. [2020-10-14 22:56:39,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:39,876 INFO L93 Difference]: Finished difference Result 92953 states and 103508 transitions. [2020-10-14 22:56:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:56:39,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1177 [2020-10-14 22:56:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:39,995 INFO L225 Difference]: With dead ends: 92953 [2020-10-14 22:56:39,996 INFO L226 Difference]: Without dead ends: 49730 [2020-10-14 22:56:40,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:40,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49730 states. [2020-10-14 22:56:40,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49730 to 49625. [2020-10-14 22:56:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49625 states. [2020-10-14 22:56:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49625 states to 49625 states and 54903 transitions. [2020-10-14 22:56:40,725 INFO L78 Accepts]: Start accepts. Automaton has 49625 states and 54903 transitions. Word has length 1177 [2020-10-14 22:56:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:40,726 INFO L479 AbstractCegarLoop]: Abstraction has 49625 states and 54903 transitions. [2020-10-14 22:56:40,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 49625 states and 54903 transitions. [2020-10-14 22:56:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1209 [2020-10-14 22:56:40,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:40,748 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:40,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:56:40,749 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:40,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:40,749 INFO L82 PathProgramCache]: Analyzing trace with hash -711204558, now seen corresponding path program 1 times [2020-10-14 22:56:40,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:40,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487440142] [2020-10-14 22:56:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:40,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:41,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:45,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:45,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1230 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 22:56:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:46,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:56:46,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:46,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:46,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:46,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:46,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:56:46,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:56:46,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:46,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:47,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:56:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:47,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:47,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:56:47,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:47,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:56:47,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:47,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:47,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:47,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:47,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:47,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:47,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:47,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:47,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:47,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:47,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:47,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:56:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:47,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:47,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:56:47,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:56:47,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:47,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:56:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:48,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:48,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:56:48,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:48,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 22:56:48,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:48,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:48,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 22:56:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1186 backedges. 629 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-14 22:56:49,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487440142] [2020-10-14 22:56:49,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:49,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:49,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392308527] [2020-10-14 22:56:49,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:49,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:49,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:49,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:49,041 INFO L87 Difference]: Start difference. First operand 49625 states and 54903 transitions. Second operand 7 states. [2020-10-14 22:56:58,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:58,723 INFO L93 Difference]: Finished difference Result 99335 states and 109955 transitions. [2020-10-14 22:56:58,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:56:58,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1208 [2020-10-14 22:56:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:58,848 INFO L225 Difference]: With dead ends: 99335 [2020-10-14 22:56:58,848 INFO L226 Difference]: Without dead ends: 49716 [2020-10-14 22:56:58,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:56:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49716 states. [2020-10-14 22:56:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49716 to 49635. [2020-10-14 22:56:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49635 states. [2020-10-14 22:56:59,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49635 states to 49635 states and 54889 transitions. [2020-10-14 22:56:59,509 INFO L78 Accepts]: Start accepts. Automaton has 49635 states and 54889 transitions. Word has length 1208 [2020-10-14 22:56:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:59,511 INFO L479 AbstractCegarLoop]: Abstraction has 49635 states and 54889 transitions. [2020-10-14 22:56:59,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:59,511 INFO L276 IsEmpty]: Start isEmpty. Operand 49635 states and 54889 transitions. [2020-10-14 22:56:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2020-10-14 22:56:59,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:59,541 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:56:59,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:56:59,542 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:59,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:59,542 INFO L82 PathProgramCache]: Analyzing trace with hash 760952511, now seen corresponding path program 1 times [2020-10-14 22:56:59,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:59,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30428665] [2020-10-14 22:56:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:59,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:02,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:04,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1324 [2020-10-14 22:57:04,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:57:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-14 22:57:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1162 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 22:57:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:57:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:04,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:57:04,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:57:04,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:04,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:57:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:57:05,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:57:05,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:57:05,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:57:05,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:57:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:57:05,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:57:05,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:57:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:57:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:57:05,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:57:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:57:05,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:57:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:57:05,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:57:05,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:57:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:57:05,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:57:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:57:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:57:05,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-14 22:57:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:57:05,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:57:05,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:57:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:57:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:57:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:05,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-14 22:57:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:57:05,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:57:05,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:57:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:57:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:57:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:57:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 670 proven. 2 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2020-10-14 22:57:06,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30428665] [2020-10-14 22:57:06,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:57:06,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:57:06,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997250359] [2020-10-14 22:57:06,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:57:06,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:57:06,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:57:06,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:57:06,675 INFO L87 Difference]: Start difference. First operand 49635 states and 54889 transitions. Second operand 7 states.