/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 04:38:49,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 04:38:49,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 04:38:49,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 04:38:49,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 04:38:49,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 04:38:49,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 04:38:49,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 04:38:49,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 04:38:49,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 04:38:49,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 04:38:49,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 04:38:49,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 04:38:49,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 04:38:49,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 04:38:49,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 04:38:49,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 04:38:49,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 04:38:49,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 04:38:49,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 04:38:49,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 04:38:49,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 04:38:49,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 04:38:49,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 04:38:49,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 04:38:49,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 04:38:49,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 04:38:49,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 04:38:49,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 04:38:49,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 04:38:49,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 04:38:49,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 04:38:49,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 04:38:49,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 04:38:49,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 04:38:49,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 04:38:49,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 04:38:49,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 04:38:49,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 04:38:49,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 04:38:49,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 04:38:49,517 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 [2020-08-22 04:38:49,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 04:38:49,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 04:38:49,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 04:38:49,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 04:38:49,541 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 04:38:49,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 04:38:49,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 04:38:49,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 04:38:49,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 04:38:49,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 04:38:49,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 04:38:49,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 04:38:49,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 04:38:49,542 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 04:38:49,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 04:38:49,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 04:38:49,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 04:38:49,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 04:38:49,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 04:38:49,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 04:38:49,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 04:38:49,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:38:49,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 04:38:49,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 04:38:49,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 04:38:49,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 04:38:49,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 04:38:49,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 04:38:49,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 04:38:49,546 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-08-22 04:38:49,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 04:38:49,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 04:38:49,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 04:38:49,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 04:38:49,899 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 04:38:49,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-08-22 04:38:49,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/534b3ae3c/80804ccb1bc84b18ba5a5c00d3b86204/FLAG38266bc78 [2020-08-22 04:38:50,427 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 04:38:50,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-08-22 04:38:50,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/534b3ae3c/80804ccb1bc84b18ba5a5c00d3b86204/FLAG38266bc78 [2020-08-22 04:38:50,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/534b3ae3c/80804ccb1bc84b18ba5a5c00d3b86204 [2020-08-22 04:38:50,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 04:38:50,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 04:38:50,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 04:38:50,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 04:38:50,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 04:38:50,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:38:50" (1/1) ... [2020-08-22 04:38:50,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ac3c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:50, skipping insertion in model container [2020-08-22 04:38:50,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:38:50" (1/1) ... [2020-08-22 04:38:50,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 04:38:50,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 04:38:51,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:38:51,071 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 04:38:51,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:38:51,097 INFO L208 MainTranslator]: Completed translation [2020-08-22 04:38:51,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51 WrapperNode [2020-08-22 04:38:51,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 04:38:51,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 04:38:51,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 04:38:51,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 04:38:51,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (1/1) ... [2020-08-22 04:38:51,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 04:38:51,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 04:38:51,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 04:38:51,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 04:38:51,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (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 [2020-08-22 04:38:51,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 04:38:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 04:38:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-08-22 04:38:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 04:38:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 04:38:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 04:38:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-08-22 04:38:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 04:38:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 04:38:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 04:38:51,462 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 04:38:51,463 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 04:38:51,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:38:51 BoogieIcfgContainer [2020-08-22 04:38:51,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 04:38:51,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 04:38:51,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 04:38:51,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 04:38:51,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:38:50" (1/3) ... [2020-08-22 04:38:51,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7a3361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:38:51, skipping insertion in model container [2020-08-22 04:38:51,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:38:51" (2/3) ... [2020-08-22 04:38:51,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7a3361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:38:51, skipping insertion in model container [2020-08-22 04:38:51,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:38:51" (3/3) ... [2020-08-22 04:38:51,476 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2020-08-22 04:38:51,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 04:38:51,495 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 04:38:51,510 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 04:38:51,540 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 04:38:51,540 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 04:38:51,540 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 04:38:51,541 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 04:38:51,541 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 04:38:51,541 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 04:38:51,541 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 04:38:51,542 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 04:38:51,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-08-22 04:38:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-22 04:38:51,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:51,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:51,581 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:51,589 INFO L82 PathProgramCache]: Analyzing trace with hash 537028541, now seen corresponding path program 1 times [2020-08-22 04:38:51,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:51,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326280931] [2020-08-22 04:38:51,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:51,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:38:51,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326280931] [2020-08-22 04:38:51,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:38:51,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 04:38:51,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890595004] [2020-08-22 04:38:51,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 04:38:51,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:51,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 04:38:51,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 04:38:51,881 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-08-22 04:38:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:51,975 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2020-08-22 04:38:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 04:38:51,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-22 04:38:51,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:51,989 INFO L225 Difference]: With dead ends: 35 [2020-08-22 04:38:51,990 INFO L226 Difference]: Without dead ends: 21 [2020-08-22 04:38:51,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 04:38:52,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-22 04:38:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-22 04:38:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-22 04:38:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-08-22 04:38:52,038 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-08-22 04:38:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:52,038 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-08-22 04:38:52,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 04:38:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-08-22 04:38:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-22 04:38:52,040 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:52,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:52,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 04:38:52,041 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:52,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:52,042 INFO L82 PathProgramCache]: Analyzing trace with hash 179123823, now seen corresponding path program 1 times [2020-08-22 04:38:52,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:52,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291179832] [2020-08-22 04:38:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:38:52,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291179832] [2020-08-22 04:38:52,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:38:52,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 04:38:52,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79630547] [2020-08-22 04:38:52,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 04:38:52,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:52,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 04:38:52,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 04:38:52,140 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-08-22 04:38:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:52,222 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-08-22 04:38:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 04:38:52,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-22 04:38:52,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:52,225 INFO L225 Difference]: With dead ends: 27 [2020-08-22 04:38:52,225 INFO L226 Difference]: Without dead ends: 23 [2020-08-22 04:38:52,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 04:38:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-08-22 04:38:52,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-08-22 04:38:52,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-22 04:38:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-08-22 04:38:52,235 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-08-22 04:38:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:52,236 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-08-22 04:38:52,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 04:38:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-08-22 04:38:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 04:38:52,237 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:52,238 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:52,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 04:38:52,238 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:52,239 INFO L82 PathProgramCache]: Analyzing trace with hash 806022394, now seen corresponding path program 1 times [2020-08-22 04:38:52,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:52,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268842417] [2020-08-22 04:38:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:38:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 04:38:52,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268842417] [2020-08-22 04:38:52,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:52,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 04:38:52,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196920179] [2020-08-22 04:38:52,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 04:38:52,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:52,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 04:38:52,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:38:52,376 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 7 states. [2020-08-22 04:38:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:52,478 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-08-22 04:38:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 04:38:52,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-08-22 04:38:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:52,481 INFO L225 Difference]: With dead ends: 38 [2020-08-22 04:38:52,481 INFO L226 Difference]: Without dead ends: 23 [2020-08-22 04:38:52,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:38:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-08-22 04:38:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-08-22 04:38:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-08-22 04:38:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-08-22 04:38:52,490 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 26 [2020-08-22 04:38:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:52,491 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-08-22 04:38:52,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 04:38:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-08-22 04:38:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 04:38:52,493 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:52,493 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:52,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 04:38:52,494 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:52,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:52,494 INFO L82 PathProgramCache]: Analyzing trace with hash -983862936, now seen corresponding path program 1 times [2020-08-22 04:38:52,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:52,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723493306] [2020-08-22 04:38:52,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 04:38:52,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723493306] [2020-08-22 04:38:52,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:52,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 04:38:52,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732313997] [2020-08-22 04:38:52,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 04:38:52,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:52,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 04:38:52,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 04:38:52,668 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 6 states. [2020-08-22 04:38:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:52,784 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2020-08-22 04:38:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 04:38:52,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-22 04:38:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:52,787 INFO L225 Difference]: With dead ends: 41 [2020-08-22 04:38:52,787 INFO L226 Difference]: Without dead ends: 37 [2020-08-22 04:38:52,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:38:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-22 04:38:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-08-22 04:38:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-22 04:38:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-08-22 04:38:52,800 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 27 [2020-08-22 04:38:52,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:52,800 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-08-22 04:38:52,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 04:38:52,800 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-08-22 04:38:52,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-22 04:38:52,803 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:52,803 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:52,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 04:38:52,803 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:52,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:52,804 INFO L82 PathProgramCache]: Analyzing trace with hash 146085807, now seen corresponding path program 2 times [2020-08-22 04:38:52,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:52,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128882777] [2020-08-22 04:38:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:52,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-22 04:38:53,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128882777] [2020-08-22 04:38:53,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:53,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 04:38:53,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470919254] [2020-08-22 04:38:53,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:38:53,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:53,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:38:53,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:38:53,035 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 8 states. [2020-08-22 04:38:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:53,191 INFO L93 Difference]: Finished difference Result 79 states and 124 transitions. [2020-08-22 04:38:53,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 04:38:53,192 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-08-22 04:38:53,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:53,194 INFO L225 Difference]: With dead ends: 79 [2020-08-22 04:38:53,194 INFO L226 Difference]: Without dead ends: 48 [2020-08-22 04:38:53,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-08-22 04:38:53,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-22 04:38:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-08-22 04:38:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-22 04:38:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2020-08-22 04:38:53,209 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 40 [2020-08-22 04:38:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:53,209 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2020-08-22 04:38:53,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:38:53,209 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2020-08-22 04:38:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-22 04:38:53,211 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:53,212 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:53,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 04:38:53,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:53,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:53,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1111873851, now seen corresponding path program 3 times [2020-08-22 04:38:53,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:53,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879691880] [2020-08-22 04:38:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-08-22 04:38:53,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879691880] [2020-08-22 04:38:53,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:53,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 04:38:53,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343115416] [2020-08-22 04:38:53,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 04:38:53,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:53,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 04:38:53,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:38:53,321 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand 7 states. [2020-08-22 04:38:53,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:53,430 INFO L93 Difference]: Finished difference Result 65 states and 93 transitions. [2020-08-22 04:38:53,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 04:38:53,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-08-22 04:38:53,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:53,433 INFO L225 Difference]: With dead ends: 65 [2020-08-22 04:38:53,433 INFO L226 Difference]: Without dead ends: 61 [2020-08-22 04:38:53,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:38:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-22 04:38:53,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2020-08-22 04:38:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-22 04:38:53,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-08-22 04:38:53,449 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 41 [2020-08-22 04:38:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:53,450 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-08-22 04:38:53,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 04:38:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-08-22 04:38:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-22 04:38:53,454 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:53,454 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:53,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 04:38:53,455 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:53,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1986920854, now seen corresponding path program 4 times [2020-08-22 04:38:53,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:53,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341265127] [2020-08-22 04:38:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 77 proven. 104 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-08-22 04:38:53,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341265127] [2020-08-22 04:38:53,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:53,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 04:38:53,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329155682] [2020-08-22 04:38:53,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 04:38:53,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:53,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 04:38:53,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-08-22 04:38:53,835 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 11 states. [2020-08-22 04:38:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:54,188 INFO L93 Difference]: Finished difference Result 107 states and 178 transitions. [2020-08-22 04:38:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 04:38:54,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-08-22 04:38:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:54,192 INFO L225 Difference]: With dead ends: 107 [2020-08-22 04:38:54,192 INFO L226 Difference]: Without dead ends: 57 [2020-08-22 04:38:54,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-08-22 04:38:54,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-22 04:38:54,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-08-22 04:38:54,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-22 04:38:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-08-22 04:38:54,207 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 82 [2020-08-22 04:38:54,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:54,208 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-08-22 04:38:54,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 04:38:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-08-22 04:38:54,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-22 04:38:54,212 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:54,213 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:54,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 04:38:54,213 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:54,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:54,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1040445716, now seen corresponding path program 5 times [2020-08-22 04:38:54,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:54,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399913985] [2020-08-22 04:38:54,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:38:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 193 proven. 313 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2020-08-22 04:38:54,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399913985] [2020-08-22 04:38:54,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:54,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-22 04:38:54,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236226611] [2020-08-22 04:38:54,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 04:38:54,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:54,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 04:38:54,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-08-22 04:38:54,812 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 13 states. [2020-08-22 04:38:55,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:55,289 INFO L93 Difference]: Finished difference Result 115 states and 189 transitions. [2020-08-22 04:38:55,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 04:38:55,290 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2020-08-22 04:38:55,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:55,294 INFO L225 Difference]: With dead ends: 115 [2020-08-22 04:38:55,294 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 04:38:55,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2020-08-22 04:38:55,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 04:38:55,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2020-08-22 04:38:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-22 04:38:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 92 transitions. [2020-08-22 04:38:55,322 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 92 transitions. Word has length 136 [2020-08-22 04:38:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:55,325 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 92 transitions. [2020-08-22 04:38:55,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 04:38:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 92 transitions. [2020-08-22 04:38:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 04:38:55,335 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:55,336 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 20, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:55,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 04:38:55,337 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:55,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:55,337 INFO L82 PathProgramCache]: Analyzing trace with hash 259499213, now seen corresponding path program 6 times [2020-08-22 04:38:55,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:55,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658752587] [2020-08-22 04:38:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:38:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 04:38:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 533 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2020-08-22 04:38:55,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658752587] [2020-08-22 04:38:55,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:55,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 04:38:55,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789684357] [2020-08-22 04:38:55,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 04:38:55,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:55,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 04:38:55,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:38:55,781 INFO L87 Difference]: Start difference. First operand 70 states and 92 transitions. Second operand 10 states. [2020-08-22 04:38:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:56,052 INFO L93 Difference]: Finished difference Result 186 states and 273 transitions. [2020-08-22 04:38:56,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 04:38:56,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 177 [2020-08-22 04:38:56,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:56,062 INFO L225 Difference]: With dead ends: 186 [2020-08-22 04:38:56,063 INFO L226 Difference]: Without dead ends: 182 [2020-08-22 04:38:56,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:38:56,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-22 04:38:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 170. [2020-08-22 04:38:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-08-22 04:38:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 250 transitions. [2020-08-22 04:38:56,115 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 250 transitions. Word has length 177 [2020-08-22 04:38:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:56,115 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 250 transitions. [2020-08-22 04:38:56,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 04:38:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 250 transitions. [2020-08-22 04:38:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-22 04:38:56,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:56,127 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 38, 23, 23, 23, 23, 23, 23, 23, 15, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:56,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 04:38:56,127 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:56,128 INFO L82 PathProgramCache]: Analyzing trace with hash -530192014, now seen corresponding path program 7 times [2020-08-22 04:38:56,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:56,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207805475] [2020-08-22 04:38:56,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:38:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 04:38:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 04:38:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:38:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:56,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:57,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 04:38:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:57,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:57,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:57,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:57,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1358 proven. 1342 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2020-08-22 04:38:57,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207805475] [2020-08-22 04:38:57,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:57,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 04:38:57,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625408337] [2020-08-22 04:38:57,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 04:38:57,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:57,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 04:38:57,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-08-22 04:38:57,289 INFO L87 Difference]: Start difference. First operand 170 states and 250 transitions. Second operand 17 states. [2020-08-22 04:38:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:38:58,226 INFO L93 Difference]: Finished difference Result 281 states and 495 transitions. [2020-08-22 04:38:58,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-08-22 04:38:58,227 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 327 [2020-08-22 04:38:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:38:58,233 INFO L225 Difference]: With dead ends: 281 [2020-08-22 04:38:58,233 INFO L226 Difference]: Without dead ends: 125 [2020-08-22 04:38:58,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=320, Invalid=1240, Unknown=0, NotChecked=0, Total=1560 [2020-08-22 04:38:58,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-08-22 04:38:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 101. [2020-08-22 04:38:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-08-22 04:38:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 141 transitions. [2020-08-22 04:38:58,271 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 141 transitions. Word has length 327 [2020-08-22 04:38:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:38:58,275 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 141 transitions. [2020-08-22 04:38:58,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 04:38:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 141 transitions. [2020-08-22 04:38:58,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-08-22 04:38:58,283 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:38:58,283 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:38:58,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 04:38:58,284 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:38:58,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:38:58,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1425621089, now seen corresponding path program 8 times [2020-08-22 04:38:58,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:38:58,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925737374] [2020-08-22 04:38:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:38:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:58,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:38:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:58,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:38:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:58,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:58,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:38:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 04:38:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 04:38:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:38:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:38:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:38:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:38:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:38:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:38:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2020-08-22 04:38:59,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925737374] [2020-08-22 04:38:59,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:38:59,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-22 04:38:59,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98558706] [2020-08-22 04:38:59,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 04:38:59,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:38:59,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 04:38:59,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-08-22 04:38:59,980 INFO L87 Difference]: Start difference. First operand 101 states and 141 transitions. Second operand 22 states. [2020-08-22 04:39:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:39:00,533 INFO L93 Difference]: Finished difference Result 114 states and 166 transitions. [2020-08-22 04:39:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 04:39:00,534 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 286 [2020-08-22 04:39:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:39:00,536 INFO L225 Difference]: With dead ends: 114 [2020-08-22 04:39:00,537 INFO L226 Difference]: Without dead ends: 110 [2020-08-22 04:39:00,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2020-08-22 04:39:00,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-08-22 04:39:00,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-08-22 04:39:00,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-08-22 04:39:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2020-08-22 04:39:00,550 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 286 [2020-08-22 04:39:00,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:39:00,550 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2020-08-22 04:39:00,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 04:39:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2020-08-22 04:39:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-08-22 04:39:00,556 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:39:00,556 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:39:00,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 04:39:00,557 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:39:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:39:00,557 INFO L82 PathProgramCache]: Analyzing trace with hash -617256294, now seen corresponding path program 9 times [2020-08-22 04:39:00,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:39:00,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679999394] [2020-08-22 04:39:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:39:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:39:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:39:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:00,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:39:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 04:39:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 04:39:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 04:39:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:39:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 863 proven. 1526 refuted. 0 times theorem prover too weak. 4731 trivial. 0 not checked. [2020-08-22 04:39:01,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679999394] [2020-08-22 04:39:01,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:39:01,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 04:39:01,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398171379] [2020-08-22 04:39:01,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 04:39:01,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:39:01,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 04:39:01,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:39:01,483 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 15 states. [2020-08-22 04:39:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:39:01,989 INFO L93 Difference]: Finished difference Result 213 states and 325 transitions. [2020-08-22 04:39:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 04:39:01,990 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 354 [2020-08-22 04:39:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:39:01,993 INFO L225 Difference]: With dead ends: 213 [2020-08-22 04:39:01,993 INFO L226 Difference]: Without dead ends: 118 [2020-08-22 04:39:01,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2020-08-22 04:39:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-08-22 04:39:02,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2020-08-22 04:39:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-08-22 04:39:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2020-08-22 04:39:02,005 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 354 [2020-08-22 04:39:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:39:02,006 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2020-08-22 04:39:02,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 04:39:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2020-08-22 04:39:02,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-08-22 04:39:02,013 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:39:02,013 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 46, 28, 28, 28, 28, 28, 28, 28, 18, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:39:02,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 04:39:02,014 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:39:02,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:39:02,014 INFO L82 PathProgramCache]: Analyzing trace with hash 161946605, now seen corresponding path program 10 times [2020-08-22 04:39:02,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:39:02,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222495964] [2020-08-22 04:39:02,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:39:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:39:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 04:39:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:39:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-22 04:39:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 04:39:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:39:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-22 04:39:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:02,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:39:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:39:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 04:39:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:39:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 04:39:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:39:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8931 backedges. 1406 proven. 1622 refuted. 0 times theorem prover too weak. 5903 trivial. 0 not checked. [2020-08-22 04:39:03,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222495964] [2020-08-22 04:39:03,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:39:03,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 04:39:03,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445280254] [2020-08-22 04:39:03,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 04:39:03,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:39:03,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 04:39:03,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-08-22 04:39:03,294 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand 17 states. [2020-08-22 04:39:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:39:03,918 INFO L93 Difference]: Finished difference Result 194 states and 289 transitions. [2020-08-22 04:39:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-22 04:39:03,919 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 395 [2020-08-22 04:39:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:39:03,920 INFO L225 Difference]: With dead ends: 194 [2020-08-22 04:39:03,920 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 04:39:03,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2020-08-22 04:39:03,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 04:39:03,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 04:39:03,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 04:39:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 04:39:03,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 395 [2020-08-22 04:39:03,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:39:03,927 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 04:39:03,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 04:39:03,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 04:39:03,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 04:39:03,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 04:39:03,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 04:39:04,500 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 42 [2020-08-22 04:39:04,584 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 04:39:04,584 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 04:39:04,584 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 04:39:04,584 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 04:39:04,585 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 04:39:04,585 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 04:39:04,585 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2020-08-22 04:39:04,585 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 23 30) the Hoare annotation is: true [2020-08-22 04:39:04,585 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-08-22 04:39:04,585 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-08-22 04:39:04,586 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (<= 7 main_~x~0) (<= main_~x~0 7)) [2020-08-22 04:39:04,586 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 23 30) no Hoare annotation was computed. [2020-08-22 04:39:04,586 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-08-22 04:39:04,586 INFO L268 CegarLoopResult]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2020-08-22 04:39:04,586 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 23 30) no Hoare annotation was computed. [2020-08-22 04:39:04,586 INFO L268 CegarLoopResult]: For program point fiboEXIT(lines 5 13) no Hoare annotation was computed. [2020-08-22 04:39:04,586 INFO L268 CegarLoopResult]: For program point fiboFINAL(lines 5 13) no Hoare annotation was computed. [2020-08-22 04:39:04,587 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= 2 |fibo_#in~n|) (= fibo_~n |fibo_#in~n|)) [2020-08-22 04:39:04,587 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-08-22 04:39:04,587 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (let ((.cse1 (<= 1 |fibo_#t~ret0|)) (.cse2 (<= |fibo_#t~ret0| 1)) (.cse0 (= fibo_~n |fibo_#in~n|))) (or (and (<= 3 |fibo_#t~ret0|) (<= 5 |fibo_#in~n|) (<= |fibo_#t~ret0| 3) .cse0 (<= |fibo_#in~n| 5)) (and (<= 8 |fibo_#t~ret0|) .cse0 (<= 7 |fibo_#in~n|) (<= |fibo_#t~ret0| 8)) (and (<= 5 |fibo_#t~ret0|) (<= |fibo_#in~n| 6) .cse0 (<= |fibo_#t~ret0| 5) (<= 6 |fibo_#in~n|)) (and .cse1 (<= 2 |fibo_#in~n|) .cse2 (<= |fibo_#in~n| 2) .cse0) (and (<= 8 fibo_~n) .cse0) (and (<= |fibo_#in~n| 4) (<= 2 |fibo_#t~ret0|) (<= |fibo_#t~ret0| 2) .cse0 (<= 4 |fibo_#in~n|)) (and .cse1 .cse2 .cse0 (<= 3 |fibo_#in~n|) (<= |fibo_#in~n| 3)))) [2020-08-22 04:39:04,587 INFO L268 CegarLoopResult]: For program point L8(lines 8 12) no Hoare annotation was computed. [2020-08-22 04:39:04,587 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-08-22 04:39:04,588 INFO L268 CegarLoopResult]: For program point L6(lines 6 12) no Hoare annotation was computed. [2020-08-22 04:39:04,588 INFO L271 CegarLoopResult]: At program point fiboENTRY(lines 5 13) the Hoare annotation is: true [2020-08-22 04:39:04,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:39:04 BoogieIcfgContainer [2020-08-22 04:39:04,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 04:39:04,597 INFO L168 Benchmark]: Toolchain (without parser) took 13750.86 ms. Allocated memory was 140.5 MB in the beginning and 601.9 MB in the end (delta: 461.4 MB). Free memory was 103.9 MB in the beginning and 487.1 MB in the end (delta: -383.2 MB). Peak memory consumption was 413.7 MB. Max. memory is 7.1 GB. [2020-08-22 04:39:04,598 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 04:39:04,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.67 ms. Allocated memory is still 140.5 MB. Free memory was 103.7 MB in the beginning and 94.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-08-22 04:39:04,599 INFO L168 Benchmark]: Boogie Preprocessor took 114.24 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 94.5 MB in the beginning and 182.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-22 04:39:04,600 INFO L168 Benchmark]: RCFGBuilder took 254.27 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 170.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-08-22 04:39:04,601 INFO L168 Benchmark]: TraceAbstraction took 13126.22 ms. Allocated memory was 203.4 MB in the beginning and 601.9 MB in the end (delta: 398.5 MB). Free memory was 170.0 MB in the beginning and 487.1 MB in the end (delta: -317.1 MB). Peak memory consumption was 416.9 MB. Max. memory is 7.1 GB. [2020-08-22 04:39:04,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.67 ms. Allocated memory is still 140.5 MB. Free memory was 103.7 MB in the beginning and 94.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.24 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 94.5 MB in the beginning and 182.3 MB in the end (delta: -87.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.27 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 170.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13126.22 ms. Allocated memory was 203.4 MB in the beginning and 601.9 MB in the end (delta: 398.5 MB). Free memory was 170.0 MB in the beginning and 487.1 MB in the end (delta: -317.1 MB). Peak memory consumption was 416.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.3s, OverallIterations: 13, TraceHistogramMax: 57, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 340 SDtfs, 600 SDslu, 1637 SDs, 0 SdLazy, 2392 SolverSat, 606 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 881 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 76 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 323 PreInvPairs, 389 NumberOfFragments, 120 HoareAnnotationTreeSize, 323 FomulaSimplifications, 227 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 2180 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 1918 NumberOfCodeBlocks, 1918 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1905 ConstructedInterpolants, 0 QuantifiedInterpolants, 1027711 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 22683/29663 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...