/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=0.4 --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_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:38:01,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:38:01,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:38:01,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:38:01,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:38:01,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:38:01,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:38:01,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:38:01,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:38:01,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:38:01,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:38:01,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:38:01,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:38:01,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:38:01,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:38:01,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:38:01,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:38:01,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:38:01,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:38:01,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:38:01,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:38:01,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:38:01,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:38:01,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:38:01,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:38:01,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:38:01,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:38:01,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:38:01,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:38:01,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:38:01,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:38:01,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:38:01,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:38:01,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:38:01,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:38:01,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:38:01,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:38:01,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:38:01,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:38:01,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:38:01,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:38:01,542 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 05:38:01,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:38:01,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:38:01,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:38:01,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:38:01,568 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:38:01,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:38:01,568 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:38:01,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:38:01,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:38:01,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:38:01,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:38:01,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:38:01,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:38:01,570 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:38:01,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:38:01,570 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:38:01,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:38:01,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:38:01,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:38:01,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:38:01,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:38:01,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:38:01,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:38:01,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:38:01,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:38:01,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:38:01,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:38:01,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:38:01,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:38:01,573 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:38:02,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:38:02,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:38:02,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:38:02,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:38:02,055 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:38:02,057 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-09-25 05:38:02,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13c8e74f/588eac1953024d5b85abd40b84949c20/FLAG8f435d3aa [2020-09-25 05:38:02,794 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:38:02,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-09-25 05:38:02,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13c8e74f/588eac1953024d5b85abd40b84949c20/FLAG8f435d3aa [2020-09-25 05:38:03,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13c8e74f/588eac1953024d5b85abd40b84949c20 [2020-09-25 05:38:03,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:38:03,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:38:03,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:38:03,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:38:03,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:38:03,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03, skipping insertion in model container [2020-09-25 05:38:03,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:38:03,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:38:03,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:38:03,637 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:38:03,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:38:03,882 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:38:03,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03 WrapperNode [2020-09-25 05:38:03,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:38:03,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:38:03,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:38:03,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:38:03,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (1/1) ... [2020-09-25 05:38:03,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:38:03,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:38:03,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:38:03,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:38:03,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (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 05:38:04,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:38:04,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:38:04,105 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 05:38:04,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:38:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 05:38:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:38:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:38:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:38:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:38:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:38:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:38:05,631 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:38:05,632 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:38:05,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:38:05 BoogieIcfgContainer [2020-09-25 05:38:05,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:38:05,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:38:05,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:38:05,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:38:05,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:38:03" (1/3) ... [2020-09-25 05:38:05,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411ae65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:38:05, skipping insertion in model container [2020-09-25 05:38:05,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:38:03" (2/3) ... [2020-09-25 05:38:05,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411ae65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:38:05, skipping insertion in model container [2020-09-25 05:38:05,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:38:05" (3/3) ... [2020-09-25 05:38:05,652 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2020-09-25 05:38:05,666 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:38:05,679 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:38:05,706 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:38:05,748 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:38:05,748 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:38:05,749 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:38:05,749 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:38:05,749 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:38:05,749 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:38:05,749 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:38:05,749 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:38:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 05:38:05,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 05:38:05,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:05,793 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] [2020-09-25 05:38:05,793 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:05,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:05,802 INFO L82 PathProgramCache]: Analyzing trace with hash -200720489, now seen corresponding path program 1 times [2020-09-25 05:38:05,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:05,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159932049] [2020-09-25 05:38:05,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:06,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:06,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:06,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:06,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 05:38:06,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:38:06,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 966 [2020-09-25 05:38:06,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:06,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:38:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:38:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 05:38:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 05:38:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:07,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:07,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:07,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:07,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:07,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 05:38:07,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:07,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:38:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:38:07,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:07,194 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 05:38:07,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159932049] [2020-09-25 05:38:07,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:38:07,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:38:07,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657179689] [2020-09-25 05:38:07,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:38:07,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:07,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:38:07,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:38:07,239 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 5 states. [2020-09-25 05:38:10,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:38:10,280 INFO L93 Difference]: Finished difference Result 1352 states and 1911 transitions. [2020-09-25 05:38:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:38:10,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-09-25 05:38:10,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:38:10,316 INFO L225 Difference]: With dead ends: 1352 [2020-09-25 05:38:10,316 INFO L226 Difference]: Without dead ends: 806 [2020-09-25 05:38:10,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:38:10,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-09-25 05:38:10,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 727. [2020-09-25 05:38:10,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-09-25 05:38:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 896 transitions. [2020-09-25 05:38:10,445 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 896 transitions. Word has length 43 [2020-09-25 05:38:10,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:38:10,445 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 896 transitions. [2020-09-25 05:38:10,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:38:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 896 transitions. [2020-09-25 05:38:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-25 05:38:10,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:10,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:10,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:38:10,456 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:10,456 INFO L82 PathProgramCache]: Analyzing trace with hash -819138438, now seen corresponding path program 1 times [2020-09-25 05:38:10,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:10,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127569187] [2020-09-25 05:38:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:10,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:10,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:10,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:11,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:11,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:13,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:13,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 05:38:13,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:38:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2955 [2020-09-25 05:38:13,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:13,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 05:38:13,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:38:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:13,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:13,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:13,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:13,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:13,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:13,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:38:13,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:13,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:38:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:38:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:13,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 05:38:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:13,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:13,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:13,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 05:38:13,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:13,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 05:38:13,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:13,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:38:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 05:38:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:38:13,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127569187] [2020-09-25 05:38:13,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:38:13,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 05:38:13,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930106750] [2020-09-25 05:38:13,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:38:13,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:13,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:38:13,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:38:13,773 INFO L87 Difference]: Start difference. First operand 727 states and 896 transitions. Second operand 5 states. [2020-09-25 05:38:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:38:15,542 INFO L93 Difference]: Finished difference Result 1033 states and 1346 transitions. [2020-09-25 05:38:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:38:15,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-09-25 05:38:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:38:15,556 INFO L225 Difference]: With dead ends: 1033 [2020-09-25 05:38:15,556 INFO L226 Difference]: Without dead ends: 1031 [2020-09-25 05:38:15,558 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 [2020-09-25 05:38:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-09-25 05:38:15,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 879. [2020-09-25 05:38:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-09-25 05:38:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1129 transitions. [2020-09-25 05:38:15,604 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1129 transitions. Word has length 126 [2020-09-25 05:38:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:38:15,607 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 1129 transitions. [2020-09-25 05:38:15,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:38:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1129 transitions. [2020-09-25 05:38:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 05:38:15,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:15,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:15,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:38:15,616 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:15,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:15,616 INFO L82 PathProgramCache]: Analyzing trace with hash -203251606, now seen corresponding path program 1 times [2020-09-25 05:38:15,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:15,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685632495] [2020-09-25 05:38:15,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:15,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:15,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:16,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:16,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:18,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:18,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-25 05:38:18,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:38:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2540 [2020-09-25 05:38:18,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:18,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 05:38:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 05:38:18,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:18,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:18,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:18,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:18,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:18,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:38:18,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:18,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:38:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:18,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:38:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 05:38:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:18,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:18,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:18,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:38:18,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:18,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 05:38:18,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:18,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:18,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:38:18,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:18,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 05:38:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:38:18,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685632495] [2020-09-25 05:38:18,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:38:18,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 05:38:18,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224035513] [2020-09-25 05:38:18,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:38:18,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:18,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:38:18,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:38:18,466 INFO L87 Difference]: Start difference. First operand 879 states and 1129 transitions. Second operand 5 states. [2020-09-25 05:38:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:38:20,240 INFO L93 Difference]: Finished difference Result 1896 states and 2501 transitions. [2020-09-25 05:38:20,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:38:20,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-09-25 05:38:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:38:20,247 INFO L225 Difference]: With dead ends: 1896 [2020-09-25 05:38:20,247 INFO L226 Difference]: Without dead ends: 841 [2020-09-25 05:38:20,251 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 [2020-09-25 05:38:20,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-09-25 05:38:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2020-09-25 05:38:20,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-09-25 05:38:20,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1063 transitions. [2020-09-25 05:38:20,280 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1063 transitions. Word has length 132 [2020-09-25 05:38:20,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:38:20,281 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 1063 transitions. [2020-09-25 05:38:20,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:38:20,281 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1063 transitions. [2020-09-25 05:38:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 05:38:20,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:20,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:20,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:38:20,290 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:20,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:20,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1010276362, now seen corresponding path program 1 times [2020-09-25 05:38:20,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:20,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483168195] [2020-09-25 05:38:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:20,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:20,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:20,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:21,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:23,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:25,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:25,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-25 05:38:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:38:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 05:38:25,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:25,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:38:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-09-25 05:38:25,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 05:38:25,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:25,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:25,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:25,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:25,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:25,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:38:25,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:25,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:38:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:38:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:25,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 05:38:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:25,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:25,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:25,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 05:38:25,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 05:38:25,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:25,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:38:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 05:38:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:38:25,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483168195] [2020-09-25 05:38:25,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:38:25,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 05:38:25,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703438857] [2020-09-25 05:38:25,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:38:25,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:25,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:38:25,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:38:25,734 INFO L87 Difference]: Start difference. First operand 841 states and 1063 transitions. Second operand 6 states. [2020-09-25 05:38:28,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:38:28,188 INFO L93 Difference]: Finished difference Result 2049 states and 2697 transitions. [2020-09-25 05:38:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:38:28,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-09-25 05:38:28,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:38:28,197 INFO L225 Difference]: With dead ends: 2049 [2020-09-25 05:38:28,197 INFO L226 Difference]: Without dead ends: 1374 [2020-09-25 05:38:28,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:38:28,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2020-09-25 05:38:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1313. [2020-09-25 05:38:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2020-09-25 05:38:28,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1740 transitions. [2020-09-25 05:38:28,244 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1740 transitions. Word has length 151 [2020-09-25 05:38:28,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:38:28,245 INFO L479 AbstractCegarLoop]: Abstraction has 1313 states and 1740 transitions. [2020-09-25 05:38:28,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:38:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1740 transitions. [2020-09-25 05:38:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 05:38:28,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:28,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:28,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:38:28,249 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:28,249 INFO L82 PathProgramCache]: Analyzing trace with hash -554529762, now seen corresponding path program 1 times [2020-09-25 05:38:28,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:28,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842750979] [2020-09-25 05:38:28,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:28,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:28,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:32,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:32,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:38:32,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:38:32,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4090 [2020-09-25 05:38:32,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:32,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:32,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:32,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 05:38:32,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 05:38:32,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:32,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:32,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:32,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:32,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:38:32,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:32,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:38:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:38:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:32,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 05:38:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:32,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:32,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:32,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 05:38:32,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:32,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 05:38:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:32,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:38:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 05:38:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:32,702 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:38:32,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842750979] [2020-09-25 05:38:32,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:38:32,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 05:38:32,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089025432] [2020-09-25 05:38:32,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:38:32,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:32,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:38:32,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:38:32,708 INFO L87 Difference]: Start difference. First operand 1313 states and 1740 transitions. Second operand 6 states. [2020-09-25 05:38:34,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:38:34,474 INFO L93 Difference]: Finished difference Result 1771 states and 2405 transitions. [2020-09-25 05:38:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:38:34,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-09-25 05:38:34,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:38:34,485 INFO L225 Difference]: With dead ends: 1771 [2020-09-25 05:38:34,485 INFO L226 Difference]: Without dead ends: 1769 [2020-09-25 05:38:34,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:38:34,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2020-09-25 05:38:34,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1469. [2020-09-25 05:38:34,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2020-09-25 05:38:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1982 transitions. [2020-09-25 05:38:34,541 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1982 transitions. Word has length 175 [2020-09-25 05:38:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:38:34,542 INFO L479 AbstractCegarLoop]: Abstraction has 1469 states and 1982 transitions. [2020-09-25 05:38:34,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:38:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1982 transitions. [2020-09-25 05:38:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-09-25 05:38:34,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:34,549 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 05:38:34,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:38:34,549 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:34,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:34,550 INFO L82 PathProgramCache]: Analyzing trace with hash 391926214, now seen corresponding path program 1 times [2020-09-25 05:38:34,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:34,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345322603] [2020-09-25 05:38:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:34,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:34,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:34,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:35,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:35,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:38,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:39,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:39,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 05:38:39,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:38:39,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 05:38:39,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:39,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 05:38:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 05:38:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:38:39,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:39,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:39,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:39,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:39,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:38:39,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:39,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:38:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:38:39,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 05:38:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:39,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:39,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:39,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 05:38:39,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 05:38:39,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:39,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:38:39,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:39,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 05:38:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:39,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:38:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:39,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:40,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:40,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 05:38:40,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:40,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 05:38:40,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:40,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:38:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 05:38:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:38:40,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345322603] [2020-09-25 05:38:40,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:38:40,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:38:40,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744067539] [2020-09-25 05:38:40,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:38:40,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:40,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:38:40,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:38:40,406 INFO L87 Difference]: Start difference. First operand 1469 states and 1982 transitions. Second operand 7 states. [2020-09-25 05:38:42,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:38:42,410 INFO L93 Difference]: Finished difference Result 3592 states and 5040 transitions. [2020-09-25 05:38:42,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:38:42,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-09-25 05:38:42,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:38:42,425 INFO L225 Difference]: With dead ends: 3592 [2020-09-25 05:38:42,426 INFO L226 Difference]: Without dead ends: 2138 [2020-09-25 05:38:42,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:38:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-09-25 05:38:42,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 1792. [2020-09-25 05:38:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2020-09-25 05:38:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2377 transitions. [2020-09-25 05:38:42,493 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2377 transitions. Word has length 261 [2020-09-25 05:38:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:38:42,494 INFO L479 AbstractCegarLoop]: Abstraction has 1792 states and 2377 transitions. [2020-09-25 05:38:42,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:38:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2377 transitions. [2020-09-25 05:38:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-25 05:38:42,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:38:42,502 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 05:38:42,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:38:42,503 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:38:42,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:38:42,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1896188214, now seen corresponding path program 1 times [2020-09-25 05:38:42,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:38:42,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515386518] [2020-09-25 05:38:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:38:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:42,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:42,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:42,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:43,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:44,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:45,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:47,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:47,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-25 05:38:47,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:38:47,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:38:47,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:47,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:38:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 05:38:47,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:47,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:38:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:47,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:47,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:47,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 05:38:47,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:38:47,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:47,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:38:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:47,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:38:47,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:47,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 05:38:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:47,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:47,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:47,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 05:38:47,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:47,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 05:38:47,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:47,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:38:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:38:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 05:38:47,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:47,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:38:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:38:47,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:38:48,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:38:48,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 05:38:48,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:38:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 05:38:48,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:38:48,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:38:48,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:38:48,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:38:48,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 05:38:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:38:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:38:48,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515386518] [2020-09-25 05:38:48,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:38:48,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:38:48,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628752127] [2020-09-25 05:38:48,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:38:48,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:38:48,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:38:48,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:38:48,476 INFO L87 Difference]: Start difference. First operand 1792 states and 2377 transitions. Second operand 7 states.