/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 SingleStatement --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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:56:46,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:56:46,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:56:46,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:56:46,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:56:46,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:56:46,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:56:46,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:56:46,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:56:46,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:56:46,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:56:46,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:56:46,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:56:46,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:56:46,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:56:46,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:56:46,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:56:46,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:56:46,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:56:46,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:56:46,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:56:46,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:56:46,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:56:46,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:56:46,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:56:46,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:56:46,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:56:46,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:56:46,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:56:46,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:56:46,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:56:46,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:56:46,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:56:46,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:56:46,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:56:46,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:56:46,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:56:46,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:56:46,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:56:46,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:56:46,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:56:46,660 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 [2020-09-25 07:56:46,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:56:46,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:56:46,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:56:46,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:56:46,689 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:56:46,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:56:46,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:56:46,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:56:46,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:56:46,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:56:46,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:56:46,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:56:46,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:56:46,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:56:46,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:56:46,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:56:46,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:56:46,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:56:46,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:56:46,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:56:46,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:56:46,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:56:46,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:56:46,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:56:46,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:56:46,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:56:46,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:56:46,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:56:46,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:56:46,694 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 -> SingleStatement 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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=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=0.8;log-additional-information=true; [2020-09-25 07:56:47,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:56:47,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:56:47,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:56:47,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:56:47,226 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:56:47,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-09-25 07:56:47,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd930803a/8fbf9896d5fa4d2b90aa5c9e2a97e35b/FLAGb579bc0e8 [2020-09-25 07:56:47,974 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:56:47,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-09-25 07:56:47,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd930803a/8fbf9896d5fa4d2b90aa5c9e2a97e35b/FLAGb579bc0e8 [2020-09-25 07:56:48,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd930803a/8fbf9896d5fa4d2b90aa5c9e2a97e35b [2020-09-25 07:56:48,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:56:48,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:56:48,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:56:48,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:56:48,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:56:48,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:56:48" (1/1) ... [2020-09-25 07:56:48,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9dbf34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:48, skipping insertion in model container [2020-09-25 07:56:48,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:56:48" (1/1) ... [2020-09-25 07:56:48,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:56:48,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:56:48,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:56:48,951 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:56:49,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:56:49,066 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:56:49,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49 WrapperNode [2020-09-25 07:56:49,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:56:49,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:56:49,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:56:49,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:56:49,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (1/1) ... [2020-09-25 07:56:49,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:56:49,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:56:49,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:56:49,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:56:49,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (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 [2020-09-25 07:56:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:56:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:56:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 07:56:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:56:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 07:56:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:56:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:56:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:56:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:56:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:56:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:56:50,876 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:56:50,877 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:56:50,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:56:50 BoogieIcfgContainer [2020-09-25 07:56:50,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:56:50,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:56:50,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:56:50,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:56:50,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:56:48" (1/3) ... [2020-09-25 07:56:50,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49441650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:56:50, skipping insertion in model container [2020-09-25 07:56:50,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:56:49" (2/3) ... [2020-09-25 07:56:50,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49441650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:56:50, skipping insertion in model container [2020-09-25 07:56:50,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:56:50" (3/3) ... [2020-09-25 07:56:50,897 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2020-09-25 07:56:50,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:56:50,922 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:56:50,945 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:56:50,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:56:50,979 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:56:50,979 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:56:50,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:56:50,980 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:56:50,980 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:56:50,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:56:50,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:56:51,010 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 07:56:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 07:56:51,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:51,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:51,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:51,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2108492313, now seen corresponding path program 1 times [2020-09-25 07:56:51,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:51,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595225117] [2020-09-25 07:56:51,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:52,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:52,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 07:56:52,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:56:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-09-25 07:56:52,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:52,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:56:52,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:56:52,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 07:56:52,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:56:52,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:56:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:52,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:52,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:56:52,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:56:52,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:56:52,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:56:52,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:56:52,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:56:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:56:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:56:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:56:52,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:56:52,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:56:52,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595225117] [2020-09-25 07:56:52,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:56:52,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:56:52,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525596805] [2020-09-25 07:56:52,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:56:52,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:56:52,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:56:52,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:56:52,331 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 5 states. [2020-09-25 07:56:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:56:55,057 INFO L93 Difference]: Finished difference Result 1226 states and 1797 transitions. [2020-09-25 07:56:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:56:55,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-09-25 07:56:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:56:55,088 INFO L225 Difference]: With dead ends: 1226 [2020-09-25 07:56:55,088 INFO L226 Difference]: Without dead ends: 707 [2020-09-25 07:56:55,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:56:55,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-09-25 07:56:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 695. [2020-09-25 07:56:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-09-25 07:56:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 926 transitions. [2020-09-25 07:56:55,245 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 926 transitions. Word has length 58 [2020-09-25 07:56:55,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:56:55,247 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 926 transitions. [2020-09-25 07:56:55,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:56:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 926 transitions. [2020-09-25 07:56:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-09-25 07:56:55,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:56:55,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:56:55,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:56:55,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:56:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:56:55,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1020620813, now seen corresponding path program 1 times [2020-09-25 07:56:55,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:56:55,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764875074] [2020-09-25 07:56:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:56:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:56:55,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:56,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:56,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:56:58,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:00,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:00,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 07:57:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:57:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4995 [2020-09-25 07:57:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:00,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:57:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:57:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 07:57:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:00,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:00,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:00,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:00,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:57:00,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:00,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:57:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:57:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:00,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:00,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:00,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 07:57:00,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 07:57:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:00,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:57:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 07:57:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:57:00,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764875074] [2020-09-25 07:57:00,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:57:00,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:57:00,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738857198] [2020-09-25 07:57:00,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:57:00,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:57:00,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:57:00,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:57:00,816 INFO L87 Difference]: Start difference. First operand 695 states and 926 transitions. Second operand 7 states. [2020-09-25 07:57:02,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:57:02,919 INFO L93 Difference]: Finished difference Result 1574 states and 2131 transitions. [2020-09-25 07:57:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:57:02,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-09-25 07:57:02,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:57:02,929 INFO L225 Difference]: With dead ends: 1574 [2020-09-25 07:57:02,929 INFO L226 Difference]: Without dead ends: 894 [2020-09-25 07:57:02,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:57:02,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-25 07:57:02,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 852. [2020-09-25 07:57:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2020-09-25 07:57:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1127 transitions. [2020-09-25 07:57:02,983 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1127 transitions. Word has length 150 [2020-09-25 07:57:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:57:02,987 INFO L479 AbstractCegarLoop]: Abstraction has 852 states and 1127 transitions. [2020-09-25 07:57:02,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:57:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1127 transitions. [2020-09-25 07:57:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 07:57:02,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:57:02,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:57:02,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:57:02,999 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:57:03,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:57:03,000 INFO L82 PathProgramCache]: Analyzing trace with hash 529447495, now seen corresponding path program 1 times [2020-09-25 07:57:03,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:57:03,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119044884] [2020-09-25 07:57:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:57:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:03,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:03,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:05,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:06,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:06,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:08,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 07:57:08,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:57:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:57:08,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:08,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:57:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 07:57:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 07:57:08,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:08,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:08,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:08,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:08,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:57:08,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:08,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:57:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:57:08,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:08,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:08,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:08,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:08,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 07:57:08,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:08,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 07:57:08,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:08,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:57:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 07:57:08,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:57:08,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119044884] [2020-09-25 07:57:08,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:57:08,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:57:08,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005371365] [2020-09-25 07:57:08,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:57:08,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:57:08,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:57:08,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:57:08,526 INFO L87 Difference]: Start difference. First operand 852 states and 1127 transitions. Second operand 8 states. [2020-09-25 07:57:11,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:57:11,120 INFO L93 Difference]: Finished difference Result 2366 states and 3320 transitions. [2020-09-25 07:57:11,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:57:11,122 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-25 07:57:11,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:57:11,137 INFO L225 Difference]: With dead ends: 2366 [2020-09-25 07:57:11,137 INFO L226 Difference]: Without dead ends: 1529 [2020-09-25 07:57:11,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:57:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-09-25 07:57:11,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1167. [2020-09-25 07:57:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-09-25 07:57:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1525 transitions. [2020-09-25 07:57:11,207 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1525 transitions. Word has length 166 [2020-09-25 07:57:11,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:57:11,209 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1525 transitions. [2020-09-25 07:57:11,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:57:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1525 transitions. [2020-09-25 07:57:11,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 07:57:11,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:57:11,216 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:57:11,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:57:11,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:57:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:57:11,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1782617119, now seen corresponding path program 1 times [2020-09-25 07:57:11,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:57:11,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156465255] [2020-09-25 07:57:11,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:57:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:11,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:11,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:14,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:57:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-25 07:57:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:57:16,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:16,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:16,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:16,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:16,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:57:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:16,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:57:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:16,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:57:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:16,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:16,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 07:57:16,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:16,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 07:57:16,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:16,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:57:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:57:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 07:57:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:57:17,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156465255] [2020-09-25 07:57:17,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:57:17,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:57:17,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285615182] [2020-09-25 07:57:17,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:57:17,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:57:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:57:17,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:57:17,059 INFO L87 Difference]: Start difference. First operand 1167 states and 1525 transitions. Second operand 7 states. [2020-09-25 07:57:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:57:19,142 INFO L93 Difference]: Finished difference Result 2645 states and 3608 transitions. [2020-09-25 07:57:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:57:19,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-25 07:57:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:57:19,155 INFO L225 Difference]: With dead ends: 2645 [2020-09-25 07:57:19,156 INFO L226 Difference]: Without dead ends: 1643 [2020-09-25 07:57:19,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:57:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2020-09-25 07:57:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1483. [2020-09-25 07:57:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2020-09-25 07:57:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1907 transitions. [2020-09-25 07:57:19,209 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1907 transitions. Word has length 190 [2020-09-25 07:57:19,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:57:19,210 INFO L479 AbstractCegarLoop]: Abstraction has 1483 states and 1907 transitions. [2020-09-25 07:57:19,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:57:19,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1907 transitions. [2020-09-25 07:57:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-25 07:57:19,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:57:19,215 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:57:19,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:57:19,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:57:19,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:57:19,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1052145571, now seen corresponding path program 1 times [2020-09-25 07:57:19,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:57:19,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805233645] [2020-09-25 07:57:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:57:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:19,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:19,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:19,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:20,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:21,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:24,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:24,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 07:57:24,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:57:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 07:57:24,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:24,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:57:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 07:57:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-25 07:57:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:24,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:57:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:24,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:24,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:24,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 07:57:24,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:24,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:57:24,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:24,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:57:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:57:24,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:24,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:57:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:24,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:24,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:24,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 07:57:24,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:57:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 07:57:24,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:24,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:57:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 07:57:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:24,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:57:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:24,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:24,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:57:25,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 07:57:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:57:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-25 07:57:25,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:57:25,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:57:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:57:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:57:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 07:57:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:57:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 92 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-25 07:57:25,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805233645] [2020-09-25 07:57:25,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:57:25,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:57:25,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882153560] [2020-09-25 07:57:25,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:57:25,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:57:25,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:57:25,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:57:25,417 INFO L87 Difference]: Start difference. First operand 1483 states and 1907 transitions. Second operand 9 states. [2020-09-25 07:57:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:57:30,452 INFO L93 Difference]: Finished difference Result 3784 states and 5145 transitions. [2020-09-25 07:57:30,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:57:30,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 229 [2020-09-25 07:57:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:57:30,466 INFO L225 Difference]: With dead ends: 3784 [2020-09-25 07:57:30,467 INFO L226 Difference]: Without dead ends: 2440 [2020-09-25 07:57:30,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:57:30,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2020-09-25 07:57:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2403. [2020-09-25 07:57:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2403 states. [2020-09-25 07:57:30,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 3002 transitions. [2020-09-25 07:57:30,543 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 3002 transitions. Word has length 229 [2020-09-25 07:57:30,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:57:30,543 INFO L479 AbstractCegarLoop]: Abstraction has 2403 states and 3002 transitions. [2020-09-25 07:57:30,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:57:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 3002 transitions. [2020-09-25 07:57:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-25 07:57:30,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:57:30,551 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:57:30,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:57:30,551 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:57:30,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:57:30,552 INFO L82 PathProgramCache]: Analyzing trace with hash -17451675, now seen corresponding path program 1 times [2020-09-25 07:57:30,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:57:30,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259471159] [2020-09-25 07:57:30,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:57:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:57:30,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:30,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:31,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:31,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:32,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:57:33,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking...