/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem16_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:46:37,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:46:37,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:46:37,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:46:37,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:46:37,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:46:37,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:46:37,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:46:37,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:46:37,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:46:37,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:46:37,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:46:37,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:46:37,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:46:37,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:46:37,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:46:37,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:46:37,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:46:37,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:46:37,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:46:37,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:46:37,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:46:37,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:46:37,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:46:37,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:46:37,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:46:37,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:46:37,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:46:37,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:46:37,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:46:37,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:46:37,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:46:37,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:46:37,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:46:37,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:46:37,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:46:37,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:46:37,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:46:37,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:46:37,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:46:37,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:46:37,246 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 03:46:37,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:46:37,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:46:37,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:46:37,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:46:37,285 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:46:37,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:46:37,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:46:37,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:46:37,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:46:37,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:46:37,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:46:37,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:46:37,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:46:37,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:46:37,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:46:37,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:46:37,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:46:37,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:46:37,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:46:37,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:46:37,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:46:37,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:37,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:46:37,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:46:37,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:46:37,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:46:37,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:46:37,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:46:37,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:46:37,291 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:46:37,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:46:37,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:46:37,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:46:37,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:46:37,620 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:46:37,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label31.c [2020-10-14 03:46:37,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/642734d8c/e3176179a22049d1a89484bdbff5871c/FLAGc88818ef1 [2020-10-14 03:46:38,409 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:46:38,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label31.c [2020-10-14 03:46:38,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/642734d8c/e3176179a22049d1a89484bdbff5871c/FLAGc88818ef1 [2020-10-14 03:46:38,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/642734d8c/e3176179a22049d1a89484bdbff5871c [2020-10-14 03:46:38,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:46:38,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:46:38,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:38,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:46:38,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:46:38,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:38" (1/1) ... [2020-10-14 03:46:38,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b0c8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:38, skipping insertion in model container [2020-10-14 03:46:38,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:38" (1/1) ... [2020-10-14 03:46:38,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:46:38,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:46:39,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:39,510 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:46:39,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:39,760 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:46:39,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39 WrapperNode [2020-10-14 03:46:39,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:39,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:46:39,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:46:39,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:46:39,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (1/1) ... [2020-10-14 03:46:39,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:46:39,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:46:39,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:46:39,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:46:39,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (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 03:46:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:46:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:46:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:46:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:46:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:46:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:46:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:46:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:46:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:46:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:46:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:46:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:46:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:46:42,645 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:46:42,645 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:46:42,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:42 BoogieIcfgContainer [2020-10-14 03:46:42,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:46:42,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:46:42,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:46:42,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:46:42,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:46:38" (1/3) ... [2020-10-14 03:46:42,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:42, skipping insertion in model container [2020-10-14 03:46:42,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:39" (2/3) ... [2020-10-14 03:46:42,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:42, skipping insertion in model container [2020-10-14 03:46:42,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:42" (3/3) ... [2020-10-14 03:46:42,663 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label31.c [2020-10-14 03:46:42,675 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:46:42,683 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:46:42,699 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:46:42,728 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:46:42,728 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:46:42,728 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:46:42,728 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:46:42,728 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:46:42,728 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:46:42,729 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:46:42,729 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:46:42,756 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:46:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 03:46:42,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:42,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:42,764 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:42,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1091509315, now seen corresponding path program 1 times [2020-10-14 03:46:42,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:42,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697270911] [2020-10-14 03:46:42,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:43,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:43,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 03:46:43,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-14 03:46:43,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:43,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:43,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:46:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:46:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 03:46:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:46:43,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:43,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:43,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:43,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:46:43,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:43,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:46:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:43,333 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 03:46:43,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697270911] [2020-10-14 03:46:43,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:46:43,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:46:43,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293046310] [2020-10-14 03:46:43,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:46:43,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:43,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:46:43,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:46:43,362 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:46:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:47,044 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:46:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:46:47,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 03:46:47,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:47,067 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:46:47,067 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:46:47,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:47,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:46:47,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:46:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:46:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:46:47,179 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 14 [2020-10-14 03:46:47,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:47,179 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:46:47,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:46:47,180 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:46:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 03:46:47,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:47,185 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 03:46:47,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:46:47,186 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash 432956112, now seen corresponding path program 1 times [2020-10-14 03:46:47,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:47,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193193182] [2020-10-14 03:46:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:47,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:47,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:48,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:48,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 03:46:48,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:46:48,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-14 03:46:48,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:48,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:46:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 03:46:48,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:48,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:48,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:48,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:48,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:48,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:48,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:46:48,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:48,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:48,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:48,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:48,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:48,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:46:48,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:48,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:46:48,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:48,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:46:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 03:46:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:48,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193193182] [2020-10-14 03:46:48,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:48,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:46:48,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538054089] [2020-10-14 03:46:48,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:46:48,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:48,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:46:48,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:48,542 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:46:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:51,997 INFO L93 Difference]: Finished difference Result 1724 states and 2649 transitions. [2020-10-14 03:46:51,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:46:52,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-10-14 03:46:52,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:52,007 INFO L225 Difference]: With dead ends: 1724 [2020-10-14 03:46:52,007 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:46:52,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:46:52,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:46:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-14 03:46:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-14 03:46:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1429 transitions. [2020-10-14 03:46:52,060 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1429 transitions. Word has length 90 [2020-10-14 03:46:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:52,060 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1429 transitions. [2020-10-14 03:46:52,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:46:52,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1429 transitions. [2020-10-14 03:46:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-14 03:46:52,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:52,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:52,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:46:52,068 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:52,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:52,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1312545401, now seen corresponding path program 1 times [2020-10-14 03:46:52,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:52,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143615507] [2020-10-14 03:46:52,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 03:46:53,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:46:53,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1314 [2020-10-14 03:46:53,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:53,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:46:53,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 03:46:53,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:53,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:53,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:46:53,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:46:53,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:46:53,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 03:46:53,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:46:53,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:53,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143615507] [2020-10-14 03:46:53,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:53,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:46:53,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081749959] [2020-10-14 03:46:53,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:46:53,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:53,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:46:53,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:53,829 INFO L87 Difference]: Start difference. First operand 1034 states and 1429 transitions. Second operand 5 states. [2020-10-14 03:46:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:57,214 INFO L93 Difference]: Finished difference Result 2408 states and 3480 transitions. [2020-10-14 03:46:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:46:57,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-14 03:46:57,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:57,228 INFO L225 Difference]: With dead ends: 2408 [2020-10-14 03:46:57,228 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:46:57,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:46:57,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:46:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:46:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:46:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1849 transitions. [2020-10-14 03:46:57,284 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1849 transitions. Word has length 143 [2020-10-14 03:46:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:57,287 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1849 transitions. [2020-10-14 03:46:57,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:46:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1849 transitions. [2020-10-14 03:46:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-14 03:46:57,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:57,295 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:57,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:46:57,296 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:57,296 INFO L82 PathProgramCache]: Analyzing trace with hash 217569791, now seen corresponding path program 1 times [2020-10-14 03:46:57,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:57,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294291822] [2020-10-14 03:46:57,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:57,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:57,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:58,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:00,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:01,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-14 03:47:01,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3921 [2020-10-14 03:47:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:01,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:47:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:47:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:01,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:01,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:01,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:01,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:47:01,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:01,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:01,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:47:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:47:01,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:01,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:01,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:47:01,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:01,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 03:47:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:01,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:01,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:01,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 03:47:01,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:01,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:01,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:01,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:01,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:47:01,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:01,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294291822] [2020-10-14 03:47:01,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:01,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:01,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138701934] [2020-10-14 03:47:01,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:01,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:01,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:01,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:01,747 INFO L87 Difference]: Start difference. First operand 1376 states and 1849 transitions. Second operand 7 states. [2020-10-14 03:47:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:05,634 INFO L93 Difference]: Finished difference Result 3460 states and 4779 transitions. [2020-10-14 03:47:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:05,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-10-14 03:47:05,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:05,644 INFO L225 Difference]: With dead ends: 3460 [2020-10-14 03:47:05,644 INFO L226 Difference]: Without dead ends: 1739 [2020-10-14 03:47:05,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-10-14 03:47:05,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1725. [2020-10-14 03:47:05,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1725 states. [2020-10-14 03:47:05,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 1927 transitions. [2020-10-14 03:47:05,706 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 1927 transitions. Word has length 200 [2020-10-14 03:47:05,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:05,707 INFO L479 AbstractCegarLoop]: Abstraction has 1725 states and 1927 transitions. [2020-10-14 03:47:05,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 1927 transitions. [2020-10-14 03:47:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-14 03:47:05,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:05,719 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:05,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:47:05,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:05,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:05,720 INFO L82 PathProgramCache]: Analyzing trace with hash 203487656, now seen corresponding path program 1 times [2020-10-14 03:47:05,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:05,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322091442] [2020-10-14 03:47:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:07,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:07,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:10,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-14 03:47:10,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:10,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:47:10,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:10,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:47:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:47:10,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:10,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:10,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:10,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:10,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:10,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:10,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:10,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:10,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:10,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:10,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:10,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:47:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:10,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:47:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:11,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:47:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:11,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:11,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:11,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:11,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 03:47:11,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:11,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:47:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:11,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:47:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:11,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:11,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:11,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:47:11,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:11,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:11,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 137 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:47:11,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322091442] [2020-10-14 03:47:11,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:11,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:11,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550619175] [2020-10-14 03:47:11,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:11,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:11,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:11,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:11,690 INFO L87 Difference]: Start difference. First operand 1725 states and 1927 transitions. Second operand 7 states. [2020-10-14 03:47:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:14,729 INFO L93 Difference]: Finished difference Result 5180 states and 5844 transitions. [2020-10-14 03:47:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:14,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-14 03:47:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:14,747 INFO L225 Difference]: With dead ends: 5180 [2020-10-14 03:47:14,747 INFO L226 Difference]: Without dead ends: 3461 [2020-10-14 03:47:14,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2020-10-14 03:47:14,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3437. [2020-10-14 03:47:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3437 states. [2020-10-14 03:47:14,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 3717 transitions. [2020-10-14 03:47:14,852 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 3717 transitions. Word has length 368 [2020-10-14 03:47:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:14,852 INFO L479 AbstractCegarLoop]: Abstraction has 3437 states and 3717 transitions. [2020-10-14 03:47:14,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:14,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 3717 transitions. [2020-10-14 03:47:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-14 03:47:14,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:14,865 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 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 03:47:14,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:47:14,865 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:14,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:14,866 INFO L82 PathProgramCache]: Analyzing trace with hash 871357455, now seen corresponding path program 1 times [2020-10-14 03:47:14,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:14,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310142551] [2020-10-14 03:47:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:14,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:16,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:16,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 445 [2020-10-14 03:47:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 03:47:19,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:19,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:20,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:20,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:20,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:20,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:20,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:47:20,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 03:47:20,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:47:20,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 03:47:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:20,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 03:47:20,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:20,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:47:20,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 03:47:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:20,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:47:20,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:20,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:20,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 166 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:47:21,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310142551] [2020-10-14 03:47:21,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:21,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:21,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093240180] [2020-10-14 03:47:21,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:21,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:21,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:21,362 INFO L87 Difference]: Start difference. First operand 3437 states and 3717 transitions. Second operand 7 states. [2020-10-14 03:47:24,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:24,521 INFO L93 Difference]: Finished difference Result 8671 states and 9708 transitions. [2020-10-14 03:47:24,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:24,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 431 [2020-10-14 03:47:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:24,548 INFO L225 Difference]: With dead ends: 8671 [2020-10-14 03:47:24,549 INFO L226 Difference]: Without dead ends: 5240 [2020-10-14 03:47:24,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2020-10-14 03:47:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 5155. [2020-10-14 03:47:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2020-10-14 03:47:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 5520 transitions. [2020-10-14 03:47:24,682 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 5520 transitions. Word has length 431 [2020-10-14 03:47:24,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:24,683 INFO L479 AbstractCegarLoop]: Abstraction has 5155 states and 5520 transitions. [2020-10-14 03:47:24,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 5520 transitions. [2020-10-14 03:47:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2020-10-14 03:47:24,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:24,697 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:47:24,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:47:24,697 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:24,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:24,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1310317576, now seen corresponding path program 1 times [2020-10-14 03:47:24,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:24,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721850924] [2020-10-14 03:47:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:24,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 462 [2020-10-14 03:47:29,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:47:29,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5107 [2020-10-14 03:47:29,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:47:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:47:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 03:47:29,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:29,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:47:29,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:47:29,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:30,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:30,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:47:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:30,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:30,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:30,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:47:30,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:30,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:30,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 03:47:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:30,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-10-14 03:47:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:30,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:30,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:30,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:47:30,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:30,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 21 proven. 229 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-14 03:47:30,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721850924] [2020-10-14 03:47:30,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:30,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:30,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424003835] [2020-10-14 03:47:30,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:30,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:30,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:30,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:30,743 INFO L87 Difference]: Start difference. First operand 5155 states and 5520 transitions. Second operand 7 states. [2020-10-14 03:47:33,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:33,461 INFO L93 Difference]: Finished difference Result 12044 states and 13105 transitions. [2020-10-14 03:47:33,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:33,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 448 [2020-10-14 03:47:33,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:33,490 INFO L225 Difference]: With dead ends: 12044 [2020-10-14 03:47:33,490 INFO L226 Difference]: Without dead ends: 6895 [2020-10-14 03:47:33,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2020-10-14 03:47:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6881. [2020-10-14 03:47:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6881 states. [2020-10-14 03:47:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 7372 transitions. [2020-10-14 03:47:33,637 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 7372 transitions. Word has length 448 [2020-10-14 03:47:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:33,638 INFO L479 AbstractCegarLoop]: Abstraction has 6881 states and 7372 transitions. [2020-10-14 03:47:33,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 7372 transitions. [2020-10-14 03:47:33,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2020-10-14 03:47:33,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:33,681 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:33,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:47:33,682 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:33,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1827737164, now seen corresponding path program 1 times [2020-10-14 03:47:33,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:33,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114836706] [2020-10-14 03:47:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:33,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:35,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 923 [2020-10-14 03:47:38,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:47:38,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:47:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:38,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:38,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:38,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:38,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:39,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:47:39,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:47:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:47:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:39,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 03:47:39,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:39,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:47:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:39,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:47:39,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-14 03:47:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:39,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:47:39,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 03:47:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1716 backedges. 278 proven. 389 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2020-10-14 03:47:40,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114836706] [2020-10-14 03:47:40,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:40,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:40,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224328680] [2020-10-14 03:47:40,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:40,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:40,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:40,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:40,018 INFO L87 Difference]: Start difference. First operand 6881 states and 7372 transitions. Second operand 7 states. [2020-10-14 03:47:43,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:43,453 INFO L93 Difference]: Finished difference Result 17994 states and 20062 transitions. [2020-10-14 03:47:43,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:43,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 903 [2020-10-14 03:47:43,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:43,507 INFO L225 Difference]: With dead ends: 17994 [2020-10-14 03:47:43,507 INFO L226 Difference]: Without dead ends: 11119 [2020-10-14 03:47:43,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11119 states. [2020-10-14 03:47:43,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11119 to 10969. [2020-10-14 03:47:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10969 states. [2020-10-14 03:47:43,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10969 states to 10969 states and 11790 transitions. [2020-10-14 03:47:43,824 INFO L78 Accepts]: Start accepts. Automaton has 10969 states and 11790 transitions. Word has length 903 [2020-10-14 03:47:43,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:43,825 INFO L479 AbstractCegarLoop]: Abstraction has 10969 states and 11790 transitions. [2020-10-14 03:47:43,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:43,825 INFO L276 IsEmpty]: Start isEmpty. Operand 10969 states and 11790 transitions. [2020-10-14 03:47:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 905 [2020-10-14 03:47:43,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:43,863 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:43,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:47:43,864 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:43,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:43,864 INFO L82 PathProgramCache]: Analyzing trace with hash 683682057, now seen corresponding path program 1 times [2020-10-14 03:47:43,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:43,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778020480] [2020-10-14 03:47:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:44,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:44,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:44,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 924 [2020-10-14 03:47:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:47:49,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:47:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:49,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:47:49,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:47:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2020-10-14 03:47:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:49,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:47:49,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:49,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2020-10-14 03:47:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:49,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:47:49,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:47:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:49,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 279 proven. 389 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2020-10-14 03:47:50,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778020480] [2020-10-14 03:47:50,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:50,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:50,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356035044] [2020-10-14 03:47:50,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:50,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:50,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:50,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:50,099 INFO L87 Difference]: Start difference. First operand 10969 states and 11790 transitions. Second operand 7 states. [2020-10-14 03:47:53,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:53,244 INFO L93 Difference]: Finished difference Result 24491 states and 27163 transitions. [2020-10-14 03:47:53,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:53,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 904 [2020-10-14 03:47:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:53,299 INFO L225 Difference]: With dead ends: 24491 [2020-10-14 03:47:53,299 INFO L226 Difference]: Without dead ends: 13528 [2020-10-14 03:47:53,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13528 states. [2020-10-14 03:47:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13528 to 13007. [2020-10-14 03:47:53,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13007 states. [2020-10-14 03:47:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13007 states to 13007 states and 13882 transitions. [2020-10-14 03:47:53,597 INFO L78 Accepts]: Start accepts. Automaton has 13007 states and 13882 transitions. Word has length 904 [2020-10-14 03:47:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:53,599 INFO L479 AbstractCegarLoop]: Abstraction has 13007 states and 13882 transitions. [2020-10-14 03:47:53,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 13007 states and 13882 transitions. [2020-10-14 03:47:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2020-10-14 03:47:53,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:53,635 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:47:53,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:47:53,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:53,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:53,636 INFO L82 PathProgramCache]: Analyzing trace with hash -298360000, now seen corresponding path program 1 times [2020-10-14 03:47:53,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:53,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13449960] [2020-10-14 03:47:53,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:53,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:55,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 999 [2020-10-14 03:47:58,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-14 03:47:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:47:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:47:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:59,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:59,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:59,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:59,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:59,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:59,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:59,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:59,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:59,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:59,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:47:59,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:59,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:59,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:59,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:47:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:59,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:47:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:59,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:59,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:59,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:59,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 03:47:59,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:59,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:47:59,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:59,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:47:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:59,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:59,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 479 proven. 251 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2020-10-14 03:48:00,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13449960] [2020-10-14 03:48:00,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:00,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:00,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399237352] [2020-10-14 03:48:00,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:00,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:00,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:00,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:00,604 INFO L87 Difference]: Start difference. First operand 13007 states and 13882 transitions. Second operand 7 states. [2020-10-14 03:48:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:03,526 INFO L93 Difference]: Finished difference Result 26022 states and 27788 transitions. [2020-10-14 03:48:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:03,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 983 [2020-10-14 03:48:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:03,562 INFO L225 Difference]: With dead ends: 26022 [2020-10-14 03:48:03,563 INFO L226 Difference]: Without dead ends: 13021 [2020-10-14 03:48:03,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 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 03:48:03,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13021 states. [2020-10-14 03:48:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13021 to 13009. [2020-10-14 03:48:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13009 states. [2020-10-14 03:48:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13009 states to 13009 states and 13880 transitions. [2020-10-14 03:48:03,839 INFO L78 Accepts]: Start accepts. Automaton has 13009 states and 13880 transitions. Word has length 983 [2020-10-14 03:48:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:03,841 INFO L479 AbstractCegarLoop]: Abstraction has 13009 states and 13880 transitions. [2020-10-14 03:48:03,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:03,842 INFO L276 IsEmpty]: Start isEmpty. Operand 13009 states and 13880 transitions. [2020-10-14 03:48:03,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2020-10-14 03:48:03,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:03,892 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:03,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:48:03,893 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:03,894 INFO L82 PathProgramCache]: Analyzing trace with hash 570772400, now seen corresponding path program 1 times [2020-10-14 03:48:03,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:03,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765280184] [2020-10-14 03:48:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:04,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:04,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:04,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:04,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:05,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1071 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:48:09,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:09,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:48:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:48:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:09,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:09,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:48:09,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:48:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:09,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:09,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:48:09,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:09,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:48:09,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:09,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:48:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:09,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:48:09,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:09,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:48:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:09,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:10,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:10,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:10,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:10,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:10,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:10,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 304 proven. 389 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2020-10-14 03:48:10,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765280184] [2020-10-14 03:48:10,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:10,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:10,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52399863] [2020-10-14 03:48:10,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:10,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:10,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:10,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:10,689 INFO L87 Difference]: Start difference. First operand 13009 states and 13880 transitions. Second operand 7 states. [2020-10-14 03:48:13,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:13,687 INFO L93 Difference]: Finished difference Result 30418 states and 32727 transitions. [2020-10-14 03:48:13,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:13,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1049 [2020-10-14 03:48:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:13,735 INFO L225 Difference]: With dead ends: 30418 [2020-10-14 03:48:13,736 INFO L226 Difference]: Without dead ends: 17415 [2020-10-14 03:48:13,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2020-10-14 03:48:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 16398. [2020-10-14 03:48:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16398 states. [2020-10-14 03:48:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16398 states to 16398 states and 17671 transitions. [2020-10-14 03:48:13,998 INFO L78 Accepts]: Start accepts. Automaton has 16398 states and 17671 transitions. Word has length 1049 [2020-10-14 03:48:13,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:13,999 INFO L479 AbstractCegarLoop]: Abstraction has 16398 states and 17671 transitions. [2020-10-14 03:48:13,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 16398 states and 17671 transitions. [2020-10-14 03:48:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2020-10-14 03:48:14,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:14,041 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:14,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:48:14,041 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:14,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:14,042 INFO L82 PathProgramCache]: Analyzing trace with hash 806542170, now seen corresponding path program 1 times [2020-10-14 03:48:14,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:14,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172970402] [2020-10-14 03:48:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:16,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1125 [2020-10-14 03:48:19,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:48:19,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:48:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:48:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:19,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:19,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:48:19,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:19,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:48:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:48:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:48:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:48:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:20,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 692 [2020-10-14 03:48:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:20,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:20,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:20,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:20,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:20,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:48:20,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:20,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:20,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2020-10-14 03:48:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:20,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:20,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:20,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:20,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:48:20,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:20,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:20,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:20,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:20,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:20,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 501 proven. 356 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2020-10-14 03:48:21,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172970402] [2020-10-14 03:48:21,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:21,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:21,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650303110] [2020-10-14 03:48:21,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:21,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:21,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:21,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:21,127 INFO L87 Difference]: Start difference. First operand 16398 states and 17671 transitions. Second operand 7 states. [2020-10-14 03:48:24,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:24,149 INFO L93 Difference]: Finished difference Result 32986 states and 36176 transitions. [2020-10-14 03:48:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:24,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1103 [2020-10-14 03:48:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:24,205 INFO L225 Difference]: With dead ends: 32986 [2020-10-14 03:48:24,205 INFO L226 Difference]: Without dead ends: 16931 [2020-10-14 03:48:24,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:48:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16931 states. [2020-10-14 03:48:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16931 to 16739. [2020-10-14 03:48:24,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16739 states. [2020-10-14 03:48:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16739 states to 16739 states and 18021 transitions. [2020-10-14 03:48:24,556 INFO L78 Accepts]: Start accepts. Automaton has 16739 states and 18021 transitions. Word has length 1103 [2020-10-14 03:48:24,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:24,557 INFO L479 AbstractCegarLoop]: Abstraction has 16739 states and 18021 transitions. [2020-10-14 03:48:24,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 16739 states and 18021 transitions. [2020-10-14 03:48:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2020-10-14 03:48:24,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:24,596 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:24,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:48:24,597 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash -56974360, now seen corresponding path program 1 times [2020-10-14 03:48:24,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:24,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949770429] [2020-10-14 03:48:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:25,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:25,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:26,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1163 [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:29,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:48:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:29,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:29,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:29,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:30,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:30,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:48:30,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:48:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:30,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:48:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:30,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:48:30,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:48:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 730 [2020-10-14 03:48:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 840 [2020-10-14 03:48:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:30,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:48:30,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:30,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:30,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:30,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:30,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:30,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:30,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:48:30,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:30,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 383 proven. 507 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2020-10-14 03:48:32,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949770429] [2020-10-14 03:48:32,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:32,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:32,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205389461] [2020-10-14 03:48:32,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:32,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:32,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:32,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:32,209 INFO L87 Difference]: Start difference. First operand 16739 states and 18021 transitions. Second operand 7 states. [2020-10-14 03:48:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:35,874 INFO L93 Difference]: Finished difference Result 33679 states and 36939 transitions. [2020-10-14 03:48:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:35,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1141 [2020-10-14 03:48:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:35,932 INFO L225 Difference]: With dead ends: 33679 [2020-10-14 03:48:35,932 INFO L226 Difference]: Without dead ends: 17283 [2020-10-14 03:48:35,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:35,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17283 states. [2020-10-14 03:48:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17283 to 17087. [2020-10-14 03:48:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17087 states. [2020-10-14 03:48:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17087 states to 17087 states and 18397 transitions. [2020-10-14 03:48:36,278 INFO L78 Accepts]: Start accepts. Automaton has 17087 states and 18397 transitions. Word has length 1141 [2020-10-14 03:48:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:36,279 INFO L479 AbstractCegarLoop]: Abstraction has 17087 states and 18397 transitions. [2020-10-14 03:48:36,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 17087 states and 18397 transitions. [2020-10-14 03:48:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2020-10-14 03:48:36,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:36,322 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:36,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:48:36,323 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:36,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:36,323 INFO L82 PathProgramCache]: Analyzing trace with hash -608051205, now seen corresponding path program 1 times [2020-10-14 03:48:36,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:36,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307078261] [2020-10-14 03:48:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:36,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:36,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1204 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:48:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:48:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:41,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:41,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:41,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:41,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:41,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:41,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:41,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:41,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:48:41,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:41,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:41,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:41,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:41,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:41,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:48:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:41,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:48:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:41,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:48:41,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:42,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:48:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:42,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:42,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:42,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:42,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:42,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:42,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:48:42,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:42,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:42,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:42,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:42,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:42,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:42,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-14 03:48:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:42,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:42,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 03:48:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:42,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:42,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:42,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:42,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:48:42,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:42,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:42,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:42,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:42,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:42,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 250 proven. 333 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2020-10-14 03:48:42,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307078261] [2020-10-14 03:48:42,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:42,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:42,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110430188] [2020-10-14 03:48:42,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:42,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:42,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:42,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:42,974 INFO L87 Difference]: Start difference. First operand 17087 states and 18397 transitions. Second operand 7 states. [2020-10-14 03:48:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:46,805 INFO L93 Difference]: Finished difference Result 38481 states and 42216 transitions. [2020-10-14 03:48:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:46,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1180 [2020-10-14 03:48:46,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:46,865 INFO L225 Difference]: With dead ends: 38481 [2020-10-14 03:48:46,866 INFO L226 Difference]: Without dead ends: 21737 [2020-10-14 03:48:46,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21737 states. [2020-10-14 03:48:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21737 to 21481. [2020-10-14 03:48:47,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21481 states. [2020-10-14 03:48:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21481 states to 21481 states and 22966 transitions. [2020-10-14 03:48:47,296 INFO L78 Accepts]: Start accepts. Automaton has 21481 states and 22966 transitions. Word has length 1180 [2020-10-14 03:48:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:47,297 INFO L479 AbstractCegarLoop]: Abstraction has 21481 states and 22966 transitions. [2020-10-14 03:48:47,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:47,297 INFO L276 IsEmpty]: Start isEmpty. Operand 21481 states and 22966 transitions. [2020-10-14 03:48:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1206 [2020-10-14 03:48:47,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:47,334 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:47,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:48:47,335 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:47,335 INFO L82 PathProgramCache]: Analyzing trace with hash 615923730, now seen corresponding path program 1 times [2020-10-14 03:48:47,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:47,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542693020] [2020-10-14 03:48:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:48,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:52,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1229 [2020-10-14 03:48:52,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 03:48:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:52,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:48:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:48:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:52,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:52,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:52,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:52,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:52,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:52,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:52,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:52,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:52,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:52,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:52,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:52,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:48:52,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:52,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:52,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:48:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:52,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:48:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:52,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:52,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:52,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:48:52,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-14 03:48:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:53,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:48:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:53,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:53,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 03:48:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:53,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:53,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:48:53,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:53,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:53,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2020-10-14 03:48:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:53,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2095 backedges. 275 proven. 333 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2020-10-14 03:48:54,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542693020] [2020-10-14 03:48:54,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:54,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:54,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401994849] [2020-10-14 03:48:54,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:54,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:54,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:54,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:54,159 INFO L87 Difference]: Start difference. First operand 21481 states and 22966 transitions. Second operand 7 states. [2020-10-14 03:48:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:57,569 INFO L93 Difference]: Finished difference Result 42631 states and 45596 transitions. [2020-10-14 03:48:57,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:57,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1205 [2020-10-14 03:48:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:57,615 INFO L225 Difference]: With dead ends: 42631 [2020-10-14 03:48:57,616 INFO L226 Difference]: Without dead ends: 21493 [2020-10-14 03:48:57,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21493 states. [2020-10-14 03:48:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21493 to 21489. [2020-10-14 03:48:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21489 states. [2020-10-14 03:48:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21489 states to 21489 states and 22429 transitions. [2020-10-14 03:48:57,989 INFO L78 Accepts]: Start accepts. Automaton has 21489 states and 22429 transitions. Word has length 1205 [2020-10-14 03:48:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:57,991 INFO L479 AbstractCegarLoop]: Abstraction has 21489 states and 22429 transitions. [2020-10-14 03:48:57,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 21489 states and 22429 transitions. [2020-10-14 03:48:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1216 [2020-10-14 03:48:58,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:58,027 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:58,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:48:58,028 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:58,029 INFO L82 PathProgramCache]: Analyzing trace with hash 159732354, now seen corresponding path program 1 times [2020-10-14 03:48:58,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:58,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752216581] [2020-10-14 03:48:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1237 [2020-10-14 03:49:10,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:10,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12111 [2020-10-14 03:49:10,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1220 [2020-10-14 03:49:10,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 03:49:10,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:10,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:10,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:10,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:49:10,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:10,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:49:10,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:49:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:10,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:49:10,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:49:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:49:11,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 03:49:11,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 289 [2020-10-14 03:49:11,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 03:49:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2020-10-14 03:49:11,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752216581] [2020-10-14 03:49:11,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:11,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:49:11,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850615775] [2020-10-14 03:49:11,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:49:11,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:11,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:49:11,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:49:11,820 INFO L87 Difference]: Start difference. First operand 21489 states and 22429 transitions. Second operand 6 states. [2020-10-14 03:49:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:15,215 INFO L93 Difference]: Finished difference Result 45333 states and 47488 transitions. [2020-10-14 03:49:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:49:15,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1215 [2020-10-14 03:49:15,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:15,262 INFO L225 Difference]: With dead ends: 45333 [2020-10-14 03:49:15,263 INFO L226 Difference]: Without dead ends: 24187 [2020-10-14 03:49:15,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24187 states. [2020-10-14 03:49:15,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24187 to 23850. [2020-10-14 03:49:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23850 states. [2020-10-14 03:49:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23850 states to 23850 states and 24958 transitions. [2020-10-14 03:49:15,611 INFO L78 Accepts]: Start accepts. Automaton has 23850 states and 24958 transitions. Word has length 1215 [2020-10-14 03:49:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:15,612 INFO L479 AbstractCegarLoop]: Abstraction has 23850 states and 24958 transitions. [2020-10-14 03:49:15,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:49:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 23850 states and 24958 transitions. [2020-10-14 03:49:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1313 [2020-10-14 03:49:15,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:15,647 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:15,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:49:15,647 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:15,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1141681362, now seen corresponding path program 1 times [2020-10-14 03:49:15,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:15,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309173284] [2020-10-14 03:49:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:15,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:16,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:16,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1334 [2020-10-14 03:49:20,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 03:49:20,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:49:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 03:49:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:20,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:20,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:21,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:49:21,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:21,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:49:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:49:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:49:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:49:21,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:49:21,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:49:21,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1052 [2020-10-14 03:49:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:21,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2965 backedges. 681 proven. 137 refuted. 0 times theorem prover too weak. 2147 trivial. 0 not checked. [2020-10-14 03:49:22,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309173284] [2020-10-14 03:49:22,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:22,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:22,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333652903] [2020-10-14 03:49:22,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:22,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:22,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:22,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:22,415 INFO L87 Difference]: Start difference. First operand 23850 states and 24958 transitions. Second operand 7 states. [2020-10-14 03:49:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:25,619 INFO L93 Difference]: Finished difference Result 47725 states and 49973 transitions. [2020-10-14 03:49:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:25,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1312 [2020-10-14 03:49:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:25,650 INFO L225 Difference]: With dead ends: 47725 [2020-10-14 03:49:25,650 INFO L226 Difference]: Without dead ends: 21830 [2020-10-14 03:49:25,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:49:25,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21830 states. [2020-10-14 03:49:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21830 to 20450. [2020-10-14 03:49:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20450 states. [2020-10-14 03:49:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20450 states to 20450 states and 21025 transitions. [2020-10-14 03:49:25,928 INFO L78 Accepts]: Start accepts. Automaton has 20450 states and 21025 transitions. Word has length 1312 [2020-10-14 03:49:25,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:25,929 INFO L479 AbstractCegarLoop]: Abstraction has 20450 states and 21025 transitions. [2020-10-14 03:49:25,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:25,930 INFO L276 IsEmpty]: Start isEmpty. Operand 20450 states and 21025 transitions. [2020-10-14 03:49:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1388 [2020-10-14 03:49:25,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:25,959 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:25,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:49:25,960 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:25,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2066225451, now seen corresponding path program 1 times [2020-10-14 03:49:25,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:25,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083540812] [2020-10-14 03:49:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:26,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:31,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:31,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1409 [2020-10-14 03:49:31,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5895 [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:49:31,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:32,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:32,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:49:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:32,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:32,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:49:32,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:32,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:49:32,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:49:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:32,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:49:32,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:49:32,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:49:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:49:32,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-14 03:49:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:49:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:33,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:49:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:49:33,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 03:49:33,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:49:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 885 proven. 214 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2020-10-14 03:49:34,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083540812] [2020-10-14 03:49:34,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:34,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:34,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708929297] [2020-10-14 03:49:34,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:34,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:34,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:34,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:34,642 INFO L87 Difference]: Start difference. First operand 20450 states and 21025 transitions. Second operand 7 states. [2020-10-14 03:49:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:38,087 INFO L93 Difference]: Finished difference Result 42933 states and 44191 transitions. [2020-10-14 03:49:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:38,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1387 [2020-10-14 03:49:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:38,124 INFO L225 Difference]: With dead ends: 42933 [2020-10-14 03:49:38,124 INFO L226 Difference]: Without dead ends: 22826 [2020-10-14 03:49:38,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22826 states. [2020-10-14 03:49:38,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22826 to 21803. [2020-10-14 03:49:38,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21803 states. [2020-10-14 03:49:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21803 states to 21803 states and 22332 transitions. [2020-10-14 03:49:38,416 INFO L78 Accepts]: Start accepts. Automaton has 21803 states and 22332 transitions. Word has length 1387 [2020-10-14 03:49:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:38,417 INFO L479 AbstractCegarLoop]: Abstraction has 21803 states and 22332 transitions. [2020-10-14 03:49:38,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states and 22332 transitions. [2020-10-14 03:49:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2122 [2020-10-14 03:49:38,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:38,474 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 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] [2020-10-14 03:49:38,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:49:38,475 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1031052260, now seen corresponding path program 1 times [2020-10-14 03:49:38,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:38,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226367236] [2020-10-14 03:49:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2149 [2020-10-14 03:49:43,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1123 [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:43,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:43,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:49:44,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:49:44,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:49:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:49:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:44,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2020-10-14 03:49:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-14 03:49:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:49:44,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 03:49:44,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:49:44,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 03:49:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:44,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:44,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1386 [2020-10-14 03:49:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:49:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:49:45,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:49:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1457 [2020-10-14 03:49:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:45,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:45,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1711 [2020-10-14 03:49:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:45,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:49:45,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1942 [2020-10-14 03:49:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:45,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:45,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:49:45,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 7732 backedges. 1257 proven. 719 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2020-10-14 03:49:48,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226367236] [2020-10-14 03:49:48,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:48,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:48,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179636398] [2020-10-14 03:49:48,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:48,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:48,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:48,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:48,329 INFO L87 Difference]: Start difference. First operand 21803 states and 22332 transitions. Second operand 7 states. [2020-10-14 03:49:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:51,663 INFO L93 Difference]: Finished difference Result 43275 states and 44334 transitions. [2020-10-14 03:49:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:51,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2121 [2020-10-14 03:49:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:51,699 INFO L225 Difference]: With dead ends: 43275 [2020-10-14 03:49:51,700 INFO L226 Difference]: Without dead ends: 21815 [2020-10-14 03:49:51,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21815 states. [2020-10-14 03:49:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21815 to 21803. [2020-10-14 03:49:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21803 states. [2020-10-14 03:49:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21803 states to 21803 states and 22328 transitions. [2020-10-14 03:49:51,966 INFO L78 Accepts]: Start accepts. Automaton has 21803 states and 22328 transitions. Word has length 2121 [2020-10-14 03:49:51,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:51,967 INFO L479 AbstractCegarLoop]: Abstraction has 21803 states and 22328 transitions. [2020-10-14 03:49:51,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:51,967 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states and 22328 transitions. [2020-10-14 03:49:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2150 [2020-10-14 03:49:52,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:52,051 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:52,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:49:52,052 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:52,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:52,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1296282396, now seen corresponding path program 1 times [2020-10-14 03:49:52,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:52,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287007471] [2020-10-14 03:49:52,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:52,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2179 [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 03:49:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:49:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:49:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:57,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:49:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:58,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:49:58,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2020-10-14 03:49:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:58,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:49:58,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:49:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-14 03:49:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:58,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:49:58,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 03:49:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:49:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:58,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:58,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:49:58,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:58,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:49:58,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:58,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:58,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-14 03:49:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:58,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:59,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:59,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:49:59,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:59,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:49:59,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:59,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:59,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:59,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:49:59,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:59,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:59,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1485 [2020-10-14 03:49:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:59,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:59,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:59,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 03:49:59,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:59,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:59,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1739 [2020-10-14 03:49:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:59,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:59,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:59,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:49:59,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:59,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:59,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1970 [2020-10-14 03:49:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:59,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:59,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:59,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:49:59,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:49:59,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:59,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:49:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:59,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 7735 backedges. 982 proven. 962 refuted. 0 times theorem prover too weak. 5791 trivial. 0 not checked. [2020-10-14 03:50:02,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287007471] [2020-10-14 03:50:02,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:02,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:02,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492303594] [2020-10-14 03:50:02,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:02,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:02,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:02,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:02,573 INFO L87 Difference]: Start difference. First operand 21803 states and 22328 transitions. Second operand 7 states. [2020-10-14 03:50:05,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:05,907 INFO L93 Difference]: Finished difference Result 43604 states and 44656 transitions. [2020-10-14 03:50:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:50:05,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2149 [2020-10-14 03:50:05,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:05,940 INFO L225 Difference]: With dead ends: 43604 [2020-10-14 03:50:05,940 INFO L226 Difference]: Without dead ends: 22144 [2020-10-14 03:50:05,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:50:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22144 states. [2020-10-14 03:50:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22144 to 21462. [2020-10-14 03:50:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21462 states. [2020-10-14 03:50:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21462 states to 21462 states and 21967 transitions. [2020-10-14 03:50:06,156 INFO L78 Accepts]: Start accepts. Automaton has 21462 states and 21967 transitions. Word has length 2149 [2020-10-14 03:50:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:06,157 INFO L479 AbstractCegarLoop]: Abstraction has 21462 states and 21967 transitions. [2020-10-14 03:50:06,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 21462 states and 21967 transitions. [2020-10-14 03:50:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2230 [2020-10-14 03:50:06,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:06,197 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:06,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:50:06,197 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:06,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1945987981, now seen corresponding path program 1 times [2020-10-14 03:50:06,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:06,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417396811] [2020-10-14 03:50:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:06,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking...