/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/Problem15_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:53:59,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:53:59,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:53:59,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:53:59,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:53:59,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:53:59,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:53:59,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:53:59,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:53:59,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:53:59,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:53:59,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:53:59,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:53:59,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:53:59,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:53:59,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:53:59,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:53:59,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:53:59,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:53:59,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:53:59,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:53:59,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:53:59,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:53:59,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:53:59,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:53:59,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:53:59,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:53:59,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:53:59,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:53:59,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:53:59,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:53:59,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:53:59,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:53:59,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:53:59,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:53:59,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:53:59,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:53:59,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:53:59,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:53:59,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:53:59,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:53:59,276 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 21:53:59,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:53:59,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:53:59,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:53:59,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:53:59,317 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:53:59,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:53:59,317 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:53:59,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:53:59,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:53:59,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:53:59,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:53:59,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:53:59,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:53:59,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:53:59,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:53:59,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:53:59,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:53:59,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:53:59,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:53:59,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:53:59,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:53:59,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:53:59,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:53:59,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:53:59,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:53:59,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:53:59,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:53:59,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:53:59,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:53:59,321 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 21:53:59,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:53:59,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:53:59,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:53:59,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:53:59,638 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:53:59,639 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label13.c [2020-10-14 21:53:59,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d59fb369/ca369175d68549a3a50623474aadc4a0/FLAG89c290f20 [2020-10-14 21:54:00,385 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:54:00,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label13.c [2020-10-14 21:54:00,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d59fb369/ca369175d68549a3a50623474aadc4a0/FLAG89c290f20 [2020-10-14 21:54:00,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d59fb369/ca369175d68549a3a50623474aadc4a0 [2020-10-14 21:54:00,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:54:00,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:54:00,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:54:00,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:54:00,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:54:00,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:54:00" (1/1) ... [2020-10-14 21:54:00,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b9b7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:00, skipping insertion in model container [2020-10-14 21:54:00,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:54:00" (1/1) ... [2020-10-14 21:54:00,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:54:00,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:54:01,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:54:01,727 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:54:02,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:54:02,042 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:54:02,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02 WrapperNode [2020-10-14 21:54:02,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:54:02,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:54:02,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:54:02,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:54:02,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (1/1) ... [2020-10-14 21:54:02,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:54:02,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:54:02,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:54:02,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:54:02,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (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 21:54:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:54:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:54:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:54:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 21:54:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:54:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:54:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 21:54:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:54:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:54:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:54:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:54:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:54:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:54:08,640 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:54:08,640 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:54:08,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:54:08 BoogieIcfgContainer [2020-10-14 21:54:08,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:54:08,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:54:08,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:54:08,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:54:08,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:54:00" (1/3) ... [2020-10-14 21:54:08,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b29e90f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:54:08, skipping insertion in model container [2020-10-14 21:54:08,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:54:02" (2/3) ... [2020-10-14 21:54:08,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b29e90f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:54:08, skipping insertion in model container [2020-10-14 21:54:08,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:54:08" (3/3) ... [2020-10-14 21:54:08,660 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label13.c [2020-10-14 21:54:08,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:54:08,680 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:54:08,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:54:08,728 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:54:08,729 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:54:08,729 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:54:08,729 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:54:08,729 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:54:08,729 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:54:08,730 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:54:08,730 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:54:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 21:54:08,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 21:54:08,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:54:08,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:54:08,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:54:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:54:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1606780512, now seen corresponding path program 1 times [2020-10-14 21:54:08,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:54:08,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960584083] [2020-10-14 21:54:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:54:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:09,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:09,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:09,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 21:54:09,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:09,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-14 21:54:09,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:09,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:54:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:54:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 21:54:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:54:09,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:54:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:09,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:09,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:09,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:54:09,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:09,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:54:09,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:09,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:54:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:54:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:54:09,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:54:09,602 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 21:54:09,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960584083] [2020-10-14 21:54:09,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:54:09,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 21:54:09,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972872368] [2020-10-14 21:54:09,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 21:54:09,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:54:09,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 21:54:09,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 21:54:09,632 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 21:54:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:54:15,465 INFO L93 Difference]: Finished difference Result 1199 states and 2164 transitions. [2020-10-14 21:54:15,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:54:15,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-14 21:54:15,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:54:15,490 INFO L225 Difference]: With dead ends: 1199 [2020-10-14 21:54:15,490 INFO L226 Difference]: Without dead ends: 697 [2020-10-14 21:54:15,504 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 21:54:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-14 21:54:15,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 691. [2020-10-14 21:54:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-14 21:54:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1012 transitions. [2020-10-14 21:54:15,602 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1012 transitions. Word has length 54 [2020-10-14 21:54:15,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:54:15,603 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 1012 transitions. [2020-10-14 21:54:15,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 21:54:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1012 transitions. [2020-10-14 21:54:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 21:54:15,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:54:15,610 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 21:54:15,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:54:15,610 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:54:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:54:15,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1880986652, now seen corresponding path program 1 times [2020-10-14 21:54:15,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:54:15,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983125832] [2020-10-14 21:54:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:54:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:15,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:15,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:16,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:18,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:18,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 21:54:18,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:54:18,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2681 [2020-10-14 21:54:18,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:18,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:54:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:54:18,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:54:18,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:54:18,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:54:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:18,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:54:18,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:54:18,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:18,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:54:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:54:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:54:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:18,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:54:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:18,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:18,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:18,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:54:18,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:18,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 21:54:18,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:18,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:54:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:54:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:54:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:18,717 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:54:18,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983125832] [2020-10-14 21:54:18,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:54:18,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:54:18,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246275994] [2020-10-14 21:54:18,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:54:18,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:54:18,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:54:18,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:54:18,723 INFO L87 Difference]: Start difference. First operand 691 states and 1012 transitions. Second operand 7 states. [2020-10-14 21:54:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:54:28,544 INFO L93 Difference]: Finished difference Result 1710 states and 2417 transitions. [2020-10-14 21:54:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:54:28,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2020-10-14 21:54:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:54:28,553 INFO L225 Difference]: With dead ends: 1710 [2020-10-14 21:54:28,553 INFO L226 Difference]: Without dead ends: 1025 [2020-10-14 21:54:28,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:54:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2020-10-14 21:54:28,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1014. [2020-10-14 21:54:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-10-14 21:54:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1367 transitions. [2020-10-14 21:54:28,613 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1367 transitions. Word has length 123 [2020-10-14 21:54:28,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:54:28,613 INFO L479 AbstractCegarLoop]: Abstraction has 1014 states and 1367 transitions. [2020-10-14 21:54:28,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:54:28,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1367 transitions. [2020-10-14 21:54:28,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 21:54:28,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:54:28,617 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:54:28,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:54:28,617 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:54:28,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:54:28,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1907665335, now seen corresponding path program 1 times [2020-10-14 21:54:28,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:54:28,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780785341] [2020-10-14 21:54:28,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:54:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:28,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:28,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:29,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:29,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:54:29,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:54:29,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1175 [2020-10-14 21:54:29,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:29,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:29,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:54:29,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:54:29,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:54:29,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:54:29,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:54:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:29,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:29,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:29,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:54:29,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:54:29,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:29,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:29,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:54:29,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:54:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:54:29,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:29,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:54:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:29,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:30,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:30,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 21:54:30,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 21:54:30,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:30,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:54:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:54:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:54:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:54:30,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780785341] [2020-10-14 21:54:30,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:54:30,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 21:54:30,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805580908] [2020-10-14 21:54:30,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:54:30,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:54:30,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:54:30,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:54:30,191 INFO L87 Difference]: Start difference. First operand 1014 states and 1367 transitions. Second operand 8 states. [2020-10-14 21:54:39,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:54:39,610 INFO L93 Difference]: Finished difference Result 3019 states and 4374 transitions. [2020-10-14 21:54:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:54:39,611 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-10-14 21:54:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:54:39,632 INFO L225 Difference]: With dead ends: 3019 [2020-10-14 21:54:39,633 INFO L226 Difference]: Without dead ends: 2318 [2020-10-14 21:54:39,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 21:54:39,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-10-14 21:54:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1981. [2020-10-14 21:54:39,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-10-14 21:54:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2653 transitions. [2020-10-14 21:54:39,731 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2653 transitions. Word has length 128 [2020-10-14 21:54:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:54:39,733 INFO L479 AbstractCegarLoop]: Abstraction has 1981 states and 2653 transitions. [2020-10-14 21:54:39,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:54:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2653 transitions. [2020-10-14 21:54:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 21:54:39,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:54:39,750 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:54:39,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:54:39,750 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:54:39,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:54:39,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1407160761, now seen corresponding path program 1 times [2020-10-14 21:54:39,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:54:39,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620216429] [2020-10-14 21:54:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:54:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:40,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:41,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:42,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:42,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 21:54:42,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:54:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2856 [2020-10-14 21:54:42,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:42,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:42,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:54:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:54:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 21:54:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 21:54:42,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:54:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:42,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:42,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:42,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:54:42,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:54:42,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:42,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:54:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:54:42,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:54:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:42,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:54:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:42,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:43,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:43,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:54:43,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:54:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 21:54:43,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:43,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:54:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:54:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:54:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:43,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 21:54:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:54:43,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:43,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:43,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:54:43,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:54:43,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:54:43,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:54:43,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-14 21:54:43,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:54:43,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:54:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:54:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:54:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:54:43,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:54:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 43 proven. 126 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 21:54:43,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620216429] [2020-10-14 21:54:43,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:54:43,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:54:43,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705062146] [2020-10-14 21:54:43,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:54:43,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:54:43,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:54:43,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:54:43,544 INFO L87 Difference]: Start difference. First operand 1981 states and 2653 transitions. Second operand 8 states. [2020-10-14 21:55:00,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:55:00,207 INFO L93 Difference]: Finished difference Result 6801 states and 9577 transitions. [2020-10-14 21:55:00,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:55:00,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2020-10-14 21:55:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:55:00,238 INFO L225 Difference]: With dead ends: 6801 [2020-10-14 21:55:00,239 INFO L226 Difference]: Without dead ends: 4826 [2020-10-14 21:55:00,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-14 21:55:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4826 states. [2020-10-14 21:55:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4826 to 4807. [2020-10-14 21:55:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4807 states. [2020-10-14 21:55:00,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6366 transitions. [2020-10-14 21:55:00,381 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6366 transitions. Word has length 228 [2020-10-14 21:55:00,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:55:00,382 INFO L479 AbstractCegarLoop]: Abstraction has 4807 states and 6366 transitions. [2020-10-14 21:55:00,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:55:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6366 transitions. [2020-10-14 21:55:00,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-14 21:55:00,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:55:00,390 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:55:00,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:55:00,390 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:55:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:55:00,391 INFO L82 PathProgramCache]: Analyzing trace with hash 484595303, now seen corresponding path program 1 times [2020-10-14 21:55:00,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:55:00,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442087793] [2020-10-14 21:55:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:55:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:00,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:05,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:05,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-14 21:55:05,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:55:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4835 [2020-10-14 21:55:05,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:05,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:55:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:55:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 21:55:05,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:05,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:55:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:05,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:05,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:05,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:55:05,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:55:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:05,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:55:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:55:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:55:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:05,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:55:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:05,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:05,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 21:55:05,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-14 21:55:05,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:05,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:05,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:55:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:55:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 21:55:05,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:55:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:06,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:06,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:06,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:55:06,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:06,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 21:55:06,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:06,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:55:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 21:55:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:55:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:55:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 94 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 21:55:07,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442087793] [2020-10-14 21:55:07,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:55:07,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:55:07,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061571974] [2020-10-14 21:55:07,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:55:07,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:55:07,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:55:07,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:55:07,165 INFO L87 Difference]: Start difference. First operand 4807 states and 6366 transitions. Second operand 7 states. [2020-10-14 21:55:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:55:19,196 INFO L93 Difference]: Finished difference Result 10311 states and 13737 transitions. [2020-10-14 21:55:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:55:19,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 334 [2020-10-14 21:55:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:55:19,230 INFO L225 Difference]: With dead ends: 10311 [2020-10-14 21:55:19,231 INFO L226 Difference]: Without dead ends: 5817 [2020-10-14 21:55:19,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:55:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2020-10-14 21:55:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5477. [2020-10-14 21:55:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5477 states. [2020-10-14 21:55:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 7137 transitions. [2020-10-14 21:55:19,389 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 7137 transitions. Word has length 334 [2020-10-14 21:55:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:55:19,390 INFO L479 AbstractCegarLoop]: Abstraction has 5477 states and 7137 transitions. [2020-10-14 21:55:19,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:55:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 7137 transitions. [2020-10-14 21:55:19,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2020-10-14 21:55:19,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:55:19,401 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:55:19,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:55:19,401 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:55:19,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:55:19,402 INFO L82 PathProgramCache]: Analyzing trace with hash 2144254814, now seen corresponding path program 1 times [2020-10-14 21:55:19,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:55:19,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268964697] [2020-10-14 21:55:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:55:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:19,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:22,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:22,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 420 [2020-10-14 21:55:22,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2510 [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 21:55:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:55:22,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:55:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:22,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:22,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:55:22,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:55:22,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:22,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:55:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:55:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:55:22,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:22,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:55:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:22,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:22,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:22,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:55:22,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:22,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-14 21:55:22,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:22,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:55:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:55:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 21:55:22,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:55:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:22,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:22,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:55:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 21:55:22,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:22,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:55:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:55:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:55:22,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:55:23,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268964697] [2020-10-14 21:55:23,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:55:23,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:55:23,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255509895] [2020-10-14 21:55:23,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:55:23,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:55:23,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:55:23,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:55:23,215 INFO L87 Difference]: Start difference. First operand 5477 states and 7137 transitions. Second operand 8 states. [2020-10-14 21:55:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:55:36,204 INFO L93 Difference]: Finished difference Result 11654 states and 15809 transitions. [2020-10-14 21:55:36,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:55:36,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 408 [2020-10-14 21:55:36,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:55:36,248 INFO L225 Difference]: With dead ends: 11654 [2020-10-14 21:55:36,249 INFO L226 Difference]: Without dead ends: 6799 [2020-10-14 21:55:36,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 21:55:36,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6799 states. [2020-10-14 21:55:36,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6799 to 6772. [2020-10-14 21:55:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6772 states. [2020-10-14 21:55:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6772 states to 6772 states and 8576 transitions. [2020-10-14 21:55:36,459 INFO L78 Accepts]: Start accepts. Automaton has 6772 states and 8576 transitions. Word has length 408 [2020-10-14 21:55:36,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:55:36,460 INFO L479 AbstractCegarLoop]: Abstraction has 6772 states and 8576 transitions. [2020-10-14 21:55:36,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:55:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 6772 states and 8576 transitions. [2020-10-14 21:55:36,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-14 21:55:36,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:55:36,473 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:55:36,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:55:36,473 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:55:36,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:55:36,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2127077424, now seen corresponding path program 1 times [2020-10-14 21:55:36,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:55:36,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699172915] [2020-10-14 21:55:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:55:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:37,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:37,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:38,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:41,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:41,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 494 [2020-10-14 21:55:41,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 436 [2020-10-14 21:55:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:55:41,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:55:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:41,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:41,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:41,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:55:41,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:55:41,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:41,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:55:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:55:41,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:55:41,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:41,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:55:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:42,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:42,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:55:42,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:42,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-14 21:55:42,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:42,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:55:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:55:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 275 [2020-10-14 21:55:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:55:42,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:55:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:42,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:42,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:42,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:55:42,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 21:55:42,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:42,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:55:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:55:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:55:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:55:42,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-10-14 21:55:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:42,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:42,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:55:42,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:55:42,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:55:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:55:42,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:55:42,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:55:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:55:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:55:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:55:42,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:55:42,870 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 205 proven. 68 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-14 21:55:42,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699172915] [2020-10-14 21:55:42,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:55:42,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:55:42,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503139719] [2020-10-14 21:55:42,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:55:42,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:55:42,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:55:42,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:55:42,873 INFO L87 Difference]: Start difference. First operand 6772 states and 8576 transitions. Second operand 8 states. [2020-10-14 21:55:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:55:55,624 INFO L93 Difference]: Finished difference Result 17413 states and 23213 transitions. [2020-10-14 21:55:55,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:55:55,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 480 [2020-10-14 21:55:55,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:55:55,693 INFO L225 Difference]: With dead ends: 17413 [2020-10-14 21:55:55,694 INFO L226 Difference]: Without dead ends: 11263 [2020-10-14 21:55:55,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:55:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11263 states. [2020-10-14 21:55:55,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11263 to 9343. [2020-10-14 21:55:55,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9343 states. [2020-10-14 21:55:55,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9343 states to 9343 states and 11599 transitions. [2020-10-14 21:55:55,981 INFO L78 Accepts]: Start accepts. Automaton has 9343 states and 11599 transitions. Word has length 480 [2020-10-14 21:55:55,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:55:55,982 INFO L479 AbstractCegarLoop]: Abstraction has 9343 states and 11599 transitions. [2020-10-14 21:55:55,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:55:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9343 states and 11599 transitions. [2020-10-14 21:55:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-10-14 21:55:56,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:55:56,001 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:56,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:55:56,001 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:55:56,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:55:56,002 INFO L82 PathProgramCache]: Analyzing trace with hash 38791983, now seen corresponding path program 1 times [2020-10-14 21:55:56,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:55:56,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765084765] [2020-10-14 21:55:56,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:55:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:55:56,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:55:58,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:01,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:01,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-10-14 21:56:01,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:56:01,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 21:56:01,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:01,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:56:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 21:56:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 21:56:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:01,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:56:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:01,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:01,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:01,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:56:01,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:01,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:56:01,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:01,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:56:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:56:01,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:01,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:56:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:01,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:01,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:56:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 21:56:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:01,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:56:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:01,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:01,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:01,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:56:01,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:01,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 21:56:01,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:01,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:56:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:56:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:56:01,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:01,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 21:56:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:01,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:01,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:01,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 21:56:01,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:56:01,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 253 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-14 21:56:02,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765084765] [2020-10-14 21:56:02,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:56:02,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:56:02,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145541331] [2020-10-14 21:56:02,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:56:02,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:56:02,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:56:02,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:56:02,325 INFO L87 Difference]: Start difference. First operand 9343 states and 11599 transitions. Second operand 7 states. [2020-10-14 21:56:13,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:56:13,243 INFO L93 Difference]: Finished difference Result 19337 states and 24107 transitions. [2020-10-14 21:56:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:56:13,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 521 [2020-10-14 21:56:13,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:56:13,299 INFO L225 Difference]: With dead ends: 19337 [2020-10-14 21:56:13,300 INFO L226 Difference]: Without dead ends: 10616 [2020-10-14 21:56:13,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:56:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10616 states. [2020-10-14 21:56:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10616 to 10286. [2020-10-14 21:56:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10286 states. [2020-10-14 21:56:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10286 states to 10286 states and 12650 transitions. [2020-10-14 21:56:13,641 INFO L78 Accepts]: Start accepts. Automaton has 10286 states and 12650 transitions. Word has length 521 [2020-10-14 21:56:13,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:56:13,642 INFO L479 AbstractCegarLoop]: Abstraction has 10286 states and 12650 transitions. [2020-10-14 21:56:13,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:56:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand 10286 states and 12650 transitions. [2020-10-14 21:56:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-10-14 21:56:13,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:56:13,659 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:56:13,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:56:13,659 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:56:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:56:13,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1434846745, now seen corresponding path program 1 times [2020-10-14 21:56:13,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:56:13,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478178855] [2020-10-14 21:56:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:56:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:15,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:16,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:16,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 547 [2020-10-14 21:56:16,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:56:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2446 [2020-10-14 21:56:16,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:16,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:56:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 21:56:16,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 21:56:16,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:56:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:16,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:16,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:16,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:56:16,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:56:16,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:16,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:56:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:56:16,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:16,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:56:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:16,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:16,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:16,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:56:16,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:16,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 21:56:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:16,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:16,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:56:16,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:16,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 21:56:16,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:16,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:16,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:56:16,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:16,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:56:16,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:56:16,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 21:56:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:16,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:56:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:56:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 21:56:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 304 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 21:56:17,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478178855] [2020-10-14 21:56:17,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:56:17,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:56:17,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622383649] [2020-10-14 21:56:17,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:56:17,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:56:17,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:56:17,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:56:17,045 INFO L87 Difference]: Start difference. First operand 10286 states and 12650 transitions. Second operand 7 states. [2020-10-14 21:56:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:56:30,680 INFO L93 Difference]: Finished difference Result 20070 states and 25476 transitions. [2020-10-14 21:56:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:56:30,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 533 [2020-10-14 21:56:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:56:30,724 INFO L225 Difference]: With dead ends: 20070 [2020-10-14 21:56:30,725 INFO L226 Difference]: Without dead ends: 10406 [2020-10-14 21:56:30,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:56:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2020-10-14 21:56:30,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 10306. [2020-10-14 21:56:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10306 states. [2020-10-14 21:56:30,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10306 states to 10306 states and 12288 transitions. [2020-10-14 21:56:30,967 INFO L78 Accepts]: Start accepts. Automaton has 10306 states and 12288 transitions. Word has length 533 [2020-10-14 21:56:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:56:30,969 INFO L479 AbstractCegarLoop]: Abstraction has 10306 states and 12288 transitions. [2020-10-14 21:56:30,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:56:30,969 INFO L276 IsEmpty]: Start isEmpty. Operand 10306 states and 12288 transitions. [2020-10-14 21:56:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2020-10-14 21:56:30,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:56:30,983 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 21:56:30,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:56:30,984 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:56:30,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:56:30,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2111268303, now seen corresponding path program 1 times [2020-10-14 21:56:30,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:56:30,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471772658] [2020-10-14 21:56:30,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:56:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:31,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:31,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:32,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:33,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:33,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:34,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:34,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 593 [2020-10-14 21:56:34,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:56:34,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3558 [2020-10-14 21:56:34,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:34,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:34,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:56:34,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 21:56:34,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 21:56:34,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:56:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:34,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:56:34,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:56:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:34,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:56:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:56:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:34,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:56:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:34,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:34,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:56:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:56:34,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:35,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 21:56:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:35,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:35,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:56:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:56:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 21:56:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:35,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:56:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:56:35,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:56:35,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 21:56:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:35,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:35,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:35,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:56:35,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:56:35,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:56:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:56:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 149 proven. 3 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-10-14 21:56:35,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471772658] [2020-10-14 21:56:35,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:56:35,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:56:35,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679807452] [2020-10-14 21:56:35,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:56:35,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:56:35,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:56:35,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:56:35,631 INFO L87 Difference]: Start difference. First operand 10306 states and 12288 transitions. Second operand 6 states. [2020-10-14 21:56:58,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:56:58,133 INFO L93 Difference]: Finished difference Result 24453 states and 30327 transitions. [2020-10-14 21:56:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:56:58,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 579 [2020-10-14 21:56:58,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:56:58,204 INFO L225 Difference]: With dead ends: 24453 [2020-10-14 21:56:58,204 INFO L226 Difference]: Without dead ends: 14459 [2020-10-14 21:56:58,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:56:58,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14459 states. [2020-10-14 21:56:58,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14459 to 14447. [2020-10-14 21:56:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14447 states. [2020-10-14 21:56:58,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14447 states to 14447 states and 17600 transitions. [2020-10-14 21:56:58,573 INFO L78 Accepts]: Start accepts. Automaton has 14447 states and 17600 transitions. Word has length 579 [2020-10-14 21:56:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:56:58,574 INFO L479 AbstractCegarLoop]: Abstraction has 14447 states and 17600 transitions. [2020-10-14 21:56:58,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:56:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 14447 states and 17600 transitions. [2020-10-14 21:56:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2020-10-14 21:56:58,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:56:58,589 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:56:58,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:56:58,590 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:56:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:56:58,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1246316427, now seen corresponding path program 1 times [2020-10-14 21:56:58,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:56:58,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780919414] [2020-10-14 21:56:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:56:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:56:58,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:56:59,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:01,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:01,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 627 [2020-10-14 21:57:01,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:57:01,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2502 [2020-10-14 21:57:01,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:01,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 491 [2020-10-14 21:57:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 21:57:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:01,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:57:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:01,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:01,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:01,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:57:01,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:57:01,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:01,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:57:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:57:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:57:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:01,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:01,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:01,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 21:57:01,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:01,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 21:57:01,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:01,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:01,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:57:01,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:01,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:57:01,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:01,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 21:57:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:01,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:01,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:01,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 21:57:01,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:01,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 21:57:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:01,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:01,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:57:01,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 21:57:01,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:01,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:57:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:57:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2020-10-14 21:57:02,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780919414] [2020-10-14 21:57:02,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:57:02,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:57:02,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822877249] [2020-10-14 21:57:02,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:57:02,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:57:02,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:57:02,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:57:02,189 INFO L87 Difference]: Start difference. First operand 14447 states and 17600 transitions. Second operand 7 states. [2020-10-14 21:57:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:57:21,468 INFO L93 Difference]: Finished difference Result 31454 states and 39516 transitions. [2020-10-14 21:57:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:57:21,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 613 [2020-10-14 21:57:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:57:21,526 INFO L225 Difference]: With dead ends: 31454 [2020-10-14 21:57:21,526 INFO L226 Difference]: Without dead ends: 17629 [2020-10-14 21:57:21,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:57:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17629 states. [2020-10-14 21:57:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17629 to 16981. [2020-10-14 21:57:21,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16981 states. [2020-10-14 21:57:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16981 states to 16981 states and 20544 transitions. [2020-10-14 21:57:21,872 INFO L78 Accepts]: Start accepts. Automaton has 16981 states and 20544 transitions. Word has length 613 [2020-10-14 21:57:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:57:21,873 INFO L479 AbstractCegarLoop]: Abstraction has 16981 states and 20544 transitions. [2020-10-14 21:57:21,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:57:21,873 INFO L276 IsEmpty]: Start isEmpty. Operand 16981 states and 20544 transitions. [2020-10-14 21:57:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-10-14 21:57:21,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:57:21,895 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:21,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:57:21,896 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:57:21,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:57:21,896 INFO L82 PathProgramCache]: Analyzing trace with hash -317293352, now seen corresponding path program 1 times [2020-10-14 21:57:21,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:57:21,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516063247] [2020-10-14 21:57:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:57:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:22,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:22,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:22,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:27,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:27,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 677 [2020-10-14 21:57:27,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 619 [2020-10-14 21:57:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:27,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:57:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:27,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:27,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:27,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:57:27,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:27,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:57:27,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:27,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:57:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:57:27,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:27,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:57:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:27,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:27,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:27,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 21:57:27,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-14 21:57:27,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:27,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:27,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:57:27,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-14 21:57:27,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:27,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 21:57:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:27,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:27,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:27,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 21:57:27,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 21:57:27,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:27,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:57:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:57:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:57:27,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:28,761 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2020-10-14 21:57:28,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 21:57:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:28,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:29,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:29,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:29,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 21:57:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 21:57:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:29,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:29,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:57:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 21:57:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 374 proven. 130 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-14 21:57:30,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516063247] [2020-10-14 21:57:30,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:57:30,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 21:57:30,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54609774] [2020-10-14 21:57:30,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 21:57:30,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:57:30,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 21:57:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:57:30,519 INFO L87 Difference]: Start difference. First operand 16981 states and 20544 transitions. Second operand 12 states. [2020-10-14 21:57:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:57:54,446 INFO L93 Difference]: Finished difference Result 46854 states and 57928 transitions. [2020-10-14 21:57:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 21:57:54,449 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 661 [2020-10-14 21:57:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:57:54,515 INFO L225 Difference]: With dead ends: 46854 [2020-10-14 21:57:54,515 INFO L226 Difference]: Without dead ends: 27593 [2020-10-14 21:57:54,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2020-10-14 21:57:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27593 states. [2020-10-14 21:57:54,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27593 to 26632. [2020-10-14 21:57:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26632 states. [2020-10-14 21:57:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26632 states to 26632 states and 30233 transitions. [2020-10-14 21:57:54,951 INFO L78 Accepts]: Start accepts. Automaton has 26632 states and 30233 transitions. Word has length 661 [2020-10-14 21:57:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:57:54,952 INFO L479 AbstractCegarLoop]: Abstraction has 26632 states and 30233 transitions. [2020-10-14 21:57:54,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 21:57:54,952 INFO L276 IsEmpty]: Start isEmpty. Operand 26632 states and 30233 transitions. [2020-10-14 21:57:54,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2020-10-14 21:57:54,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:57:54,965 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:57:54,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:57:54,966 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:57:54,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:57:54,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1925674839, now seen corresponding path program 1 times [2020-10-14 21:57:54,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:57:54,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101961440] [2020-10-14 21:57:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:57:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:55,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:55,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:57,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:57,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-14 21:57:57,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:57:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2430 [2020-10-14 21:57:57,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:57,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 576 [2020-10-14 21:57:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:57:57,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:57,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:57:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:57,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:57,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:57,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:57:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:57,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:57:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:57,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:57,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 21:57:57,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:57:57,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:57,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:57:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:57:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:57,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 21:57:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:58,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:58,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-14 21:57:58,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-14 21:57:58,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:58,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:57:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 273 [2020-10-14 21:57:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:57:58,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 21:57:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:58,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:58,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:57:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 21:57:58,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:58,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:57:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:57:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:57:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0