/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 16:34:02,217 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-21 16:34:02,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 16:34:02,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 16:34:02,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 16:34:02,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 16:34:02,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 16:34:02,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 16:34:02,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 16:34:02,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 16:34:02,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 16:34:02,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 16:34:02,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 16:34:02,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 16:34:02,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 16:34:02,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 16:34:02,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 16:34:02,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 16:34:02,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 16:34:02,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 16:34:02,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 16:34:02,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 16:34:02,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 16:34:02,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 16:34:02,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 16:34:02,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 16:34:02,334 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 [2020-08-21 16:34:02,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 16:34:02,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 16:34:02,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 16:34:02,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 16:34:02,385 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 16:34:02,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 16:34:02,386 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 16:34:02,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 16:34:02,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 16:34:02,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 16:34:02,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 16:34:02,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 16:34:02,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 16:34:02,387 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 16:34:02,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 16:34:02,388 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 16:34:02,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 16:34:02,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 16:34:02,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 16:34:02,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 16:34:02,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 16:34:02,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 16:34:02,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 16:34:02,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 16:34:02,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 16:34:02,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 16:34:02,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 16:34:02,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 16:34:02,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 16:34:02,390 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 16:34:02,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 16:34:02,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 16:34:02,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 16:34:02,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 16:34:02,687 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 16:34:02,688 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-08-21 16:34:02,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65777b4e9/89d8f3fa685c40f9a75e939ad9c7e728/FLAG6c9d731dc [2020-08-21 16:34:03,402 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 16:34:03,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-08-21 16:34:03,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65777b4e9/89d8f3fa685c40f9a75e939ad9c7e728/FLAG6c9d731dc [2020-08-21 16:34:03,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65777b4e9/89d8f3fa685c40f9a75e939ad9c7e728 [2020-08-21 16:34:03,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 16:34:03,674 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 16:34:03,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 16:34:03,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 16:34:03,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 16:34:03,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:34:03" (1/1) ... [2020-08-21 16:34:03,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:03, skipping insertion in model container [2020-08-21 16:34:03,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:34:03" (1/1) ... [2020-08-21 16:34:03,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 16:34:03,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 16:34:04,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:34:04,338 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 16:34:04,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:34:04,516 INFO L208 MainTranslator]: Completed translation [2020-08-21 16:34:04,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04 WrapperNode [2020-08-21 16:34:04,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 16:34:04,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 16:34:04,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 16:34:04,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 16:34:04,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (1/1) ... [2020-08-21 16:34:04,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 16:34:04,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 16:34:04,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 16:34:04,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 16:34:04,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (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 [2020-08-21 16:34:04,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 16:34:04,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 16:34:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 16:34:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 16:34:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 16:34:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 16:34:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 16:34:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 16:34:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 16:34:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 16:34:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 16:34:05,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 16:34:05,939 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 16:34:05,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:34:05 BoogieIcfgContainer [2020-08-21 16:34:05,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 16:34:05,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 16:34:05,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 16:34:05,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 16:34:05,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 04:34:03" (1/3) ... [2020-08-21 16:34:05,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79892c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:34:05, skipping insertion in model container [2020-08-21 16:34:05,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:04" (2/3) ... [2020-08-21 16:34:05,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79892c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:34:05, skipping insertion in model container [2020-08-21 16:34:05,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:34:05" (3/3) ... [2020-08-21 16:34:05,956 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-08-21 16:34:05,968 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 16:34:05,978 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 16:34:05,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 16:34:06,022 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 16:34:06,022 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 16:34:06,023 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 16:34:06,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 16:34:06,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 16:34:06,023 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 16:34:06,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 16:34:06,024 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 16:34:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 16:34:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-08-21 16:34:06,062 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:06,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:06,064 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:06,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-08-21 16:34:06,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:06,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066983404] [2020-08-21 16:34:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:06,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:06,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066983404] [2020-08-21 16:34:06,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:34:06,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 16:34:06,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653119647] [2020-08-21 16:34:06,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 16:34:06,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:06,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 16:34:06,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 16:34:06,721 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 16:34:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:08,249 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-08-21 16:34:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 16:34:08,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-08-21 16:34:08,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:08,268 INFO L225 Difference]: With dead ends: 557 [2020-08-21 16:34:08,268 INFO L226 Difference]: Without dead ends: 286 [2020-08-21 16:34:08,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:08,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-21 16:34:08,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-08-21 16:34:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-21 16:34:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-08-21 16:34:08,357 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 109 [2020-08-21 16:34:08,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:08,358 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-08-21 16:34:08,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 16:34:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-08-21 16:34:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-08-21 16:34:08,362 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:08,362 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:08,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 16:34:08,363 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:08,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:08,364 INFO L82 PathProgramCache]: Analyzing trace with hash -609512656, now seen corresponding path program 1 times [2020-08-21 16:34:08,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:08,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281553732] [2020-08-21 16:34:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:08,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:08,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:08,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281553732] [2020-08-21 16:34:08,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:34:08,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 16:34:08,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871529561] [2020-08-21 16:34:08,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 16:34:08,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:08,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 16:34:08,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:08,594 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-08-21 16:34:10,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:10,037 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-08-21 16:34:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 16:34:10,038 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-08-21 16:34:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:10,044 INFO L225 Difference]: With dead ends: 713 [2020-08-21 16:34:10,045 INFO L226 Difference]: Without dead ends: 439 [2020-08-21 16:34:10,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-21 16:34:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-08-21 16:34:10,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-21 16:34:10,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-08-21 16:34:10,118 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 119 [2020-08-21 16:34:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:10,118 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-08-21 16:34:10,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 16:34:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-08-21 16:34:10,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-21 16:34:10,122 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:10,122 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:10,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 16:34:10,123 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:10,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1252784430, now seen corresponding path program 1 times [2020-08-21 16:34:10,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:10,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236346288] [2020-08-21 16:34:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:10,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:10,489 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:10,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236346288] [2020-08-21 16:34:10,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:10,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 16:34:10,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130623914] [2020-08-21 16:34:10,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 16:34:10,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:10,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 16:34:10,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:10,492 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 6 states. [2020-08-21 16:34:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:11,719 INFO L93 Difference]: Finished difference Result 945 states and 1358 transitions. [2020-08-21 16:34:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:11,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-08-21 16:34:11,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:11,727 INFO L225 Difference]: With dead ends: 945 [2020-08-21 16:34:11,728 INFO L226 Difference]: Without dead ends: 427 [2020-08-21 16:34:11,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:11,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-21 16:34:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-21 16:34:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-21 16:34:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 552 transitions. [2020-08-21 16:34:11,766 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 552 transitions. Word has length 120 [2020-08-21 16:34:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:11,766 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 552 transitions. [2020-08-21 16:34:11,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 16:34:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 552 transitions. [2020-08-21 16:34:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-21 16:34:11,770 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:11,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:11,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 16:34:11,770 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:11,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:11,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1134301708, now seen corresponding path program 1 times [2020-08-21 16:34:11,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:11,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937173958] [2020-08-21 16:34:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:11,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:11,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:12,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937173958] [2020-08-21 16:34:12,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:12,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:12,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614260212] [2020-08-21 16:34:12,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:12,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:12,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:12,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:12,127 INFO L87 Difference]: Start difference. First operand 419 states and 552 transitions. Second operand 7 states. [2020-08-21 16:34:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:13,155 INFO L93 Difference]: Finished difference Result 924 states and 1249 transitions. [2020-08-21 16:34:13,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:13,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-08-21 16:34:13,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:13,160 INFO L225 Difference]: With dead ends: 924 [2020-08-21 16:34:13,160 INFO L226 Difference]: Without dead ends: 427 [2020-08-21 16:34:13,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-21 16:34:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-21 16:34:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-21 16:34:13,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-21 16:34:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 549 transitions. [2020-08-21 16:34:13,181 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 549 transitions. Word has length 121 [2020-08-21 16:34:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:13,181 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 549 transitions. [2020-08-21 16:34:13,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 549 transitions. [2020-08-21 16:34:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-08-21 16:34:13,183 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:13,184 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:13,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 16:34:13,184 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:13,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:13,185 INFO L82 PathProgramCache]: Analyzing trace with hash 107820154, now seen corresponding path program 1 times [2020-08-21 16:34:13,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:13,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645658799] [2020-08-21 16:34:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:13,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:13,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645658799] [2020-08-21 16:34:13,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:13,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 16:34:13,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321700939] [2020-08-21 16:34:13,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 16:34:13,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:13,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 16:34:13,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:13,433 INFO L87 Difference]: Start difference. First operand 419 states and 549 transitions. Second operand 6 states. [2020-08-21 16:34:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:14,950 INFO L93 Difference]: Finished difference Result 1666 states and 2256 transitions. [2020-08-21 16:34:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:14,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-08-21 16:34:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:14,966 INFO L225 Difference]: With dead ends: 1666 [2020-08-21 16:34:14,966 INFO L226 Difference]: Without dead ends: 1253 [2020-08-21 16:34:14,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-21 16:34:15,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1245. [2020-08-21 16:34:15,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-08-21 16:34:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1558 transitions. [2020-08-21 16:34:15,039 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1558 transitions. Word has length 126 [2020-08-21 16:34:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:15,040 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1558 transitions. [2020-08-21 16:34:15,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 16:34:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1558 transitions. [2020-08-21 16:34:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-21 16:34:15,046 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:15,047 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:15,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 16:34:15,048 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:15,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:15,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1185649201, now seen corresponding path program 1 times [2020-08-21 16:34:15,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:15,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398929859] [2020-08-21 16:34:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 16:34:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 16:34:15,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398929859] [2020-08-21 16:34:15,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:15,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:15,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683051496] [2020-08-21 16:34:15,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:15,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:15,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:15,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:15,294 INFO L87 Difference]: Start difference. First operand 1245 states and 1558 transitions. Second operand 7 states. [2020-08-21 16:34:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:16,492 INFO L93 Difference]: Finished difference Result 3211 states and 4144 transitions. [2020-08-21 16:34:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 16:34:16,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-08-21 16:34:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:16,505 INFO L225 Difference]: With dead ends: 3211 [2020-08-21 16:34:16,505 INFO L226 Difference]: Without dead ends: 1972 [2020-08-21 16:34:16,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-08-21 16:34:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1680. [2020-08-21 16:34:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-08-21 16:34:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2085 transitions. [2020-08-21 16:34:16,588 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2085 transitions. Word has length 142 [2020-08-21 16:34:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:16,590 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2085 transitions. [2020-08-21 16:34:16,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2085 transitions. [2020-08-21 16:34:16,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-21 16:34:16,597 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:16,597 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:16,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 16:34:16,598 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:16,599 INFO L82 PathProgramCache]: Analyzing trace with hash 720782619, now seen corresponding path program 1 times [2020-08-21 16:34:16,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:16,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890627757] [2020-08-21 16:34:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:16,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 16:34:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:16,827 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 16:34:16,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890627757] [2020-08-21 16:34:16,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:16,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:16,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661018273] [2020-08-21 16:34:16,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:16,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:16,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:16,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:16,832 INFO L87 Difference]: Start difference. First operand 1680 states and 2085 transitions. Second operand 7 states. [2020-08-21 16:34:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:18,255 INFO L93 Difference]: Finished difference Result 3930 states and 4892 transitions. [2020-08-21 16:34:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 16:34:18,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-08-21 16:34:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:18,267 INFO L225 Difference]: With dead ends: 3930 [2020-08-21 16:34:18,267 INFO L226 Difference]: Without dead ends: 2256 [2020-08-21 16:34:18,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 16:34:18,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2020-08-21 16:34:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2246. [2020-08-21 16:34:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-08-21 16:34:18,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2719 transitions. [2020-08-21 16:34:18,338 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2719 transitions. Word has length 149 [2020-08-21 16:34:18,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:18,339 INFO L479 AbstractCegarLoop]: Abstraction has 2246 states and 2719 transitions. [2020-08-21 16:34:18,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:18,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2719 transitions. [2020-08-21 16:34:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-21 16:34:18,346 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:18,346 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:18,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 16:34:18,347 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:18,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:18,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1844712986, now seen corresponding path program 1 times [2020-08-21 16:34:18,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:18,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371020597] [2020-08-21 16:34:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:18,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:18,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:18,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 16:34:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 16:34:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 92 proven. 14 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-08-21 16:34:18,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371020597] [2020-08-21 16:34:18,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:18,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:18,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663521850] [2020-08-21 16:34:18,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:18,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:18,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:18,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:18,610 INFO L87 Difference]: Start difference. First operand 2246 states and 2719 transitions. Second operand 7 states. [2020-08-21 16:34:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:19,767 INFO L93 Difference]: Finished difference Result 5203 states and 6434 transitions. [2020-08-21 16:34:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 16:34:19,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-08-21 16:34:19,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:19,783 INFO L225 Difference]: With dead ends: 5203 [2020-08-21 16:34:19,783 INFO L226 Difference]: Without dead ends: 3098 [2020-08-21 16:34:19,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-08-21 16:34:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 2669. [2020-08-21 16:34:19,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-08-21 16:34:19,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3178 transitions. [2020-08-21 16:34:19,877 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3178 transitions. Word has length 194 [2020-08-21 16:34:19,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:19,877 INFO L479 AbstractCegarLoop]: Abstraction has 2669 states and 3178 transitions. [2020-08-21 16:34:19,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3178 transitions. [2020-08-21 16:34:19,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-08-21 16:34:19,886 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:19,886 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:19,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 16:34:19,887 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:19,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:19,887 INFO L82 PathProgramCache]: Analyzing trace with hash -204380159, now seen corresponding path program 1 times [2020-08-21 16:34:19,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:19,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552718441] [2020-08-21 16:34:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:20,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:20,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:20,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 16:34:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:20,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-21 16:34:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:20,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 16:34:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 120 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 16:34:20,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552718441] [2020-08-21 16:34:20,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:20,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 16:34:20,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172810886] [2020-08-21 16:34:20,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 16:34:20,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:20,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 16:34:20,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-21 16:34:20,236 INFO L87 Difference]: Start difference. First operand 2669 states and 3178 transitions. Second operand 11 states. [2020-08-21 16:34:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:22,499 INFO L93 Difference]: Finished difference Result 5912 states and 7150 transitions. [2020-08-21 16:34:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-21 16:34:22,500 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-08-21 16:34:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:22,515 INFO L225 Difference]: With dead ends: 5912 [2020-08-21 16:34:22,516 INFO L226 Difference]: Without dead ends: 3384 [2020-08-21 16:34:22,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2020-08-21 16:34:22,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-08-21 16:34:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3370. [2020-08-21 16:34:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3370 states. [2020-08-21 16:34:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 3925 transitions. [2020-08-21 16:34:22,609 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 3925 transitions. Word has length 211 [2020-08-21 16:34:22,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:22,609 INFO L479 AbstractCegarLoop]: Abstraction has 3370 states and 3925 transitions. [2020-08-21 16:34:22,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 16:34:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 3925 transitions. [2020-08-21 16:34:22,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-08-21 16:34:22,620 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:22,620 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:22,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 16:34:22,621 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:22,621 INFO L82 PathProgramCache]: Analyzing trace with hash 87228715, now seen corresponding path program 1 times [2020-08-21 16:34:22,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:22,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244407848] [2020-08-21 16:34:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:22,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-21 16:34:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 175 proven. 27 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-08-21 16:34:23,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244407848] [2020-08-21 16:34:23,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:23,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 16:34:23,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944307019] [2020-08-21 16:34:23,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 16:34:23,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:23,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 16:34:23,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 16:34:23,080 INFO L87 Difference]: Start difference. First operand 3370 states and 3925 transitions. Second operand 10 states. [2020-08-21 16:34:23,759 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-08-21 16:34:25,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:25,774 INFO L93 Difference]: Finished difference Result 7006 states and 8205 transitions. [2020-08-21 16:34:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 16:34:25,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 267 [2020-08-21 16:34:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:25,794 INFO L225 Difference]: With dead ends: 7006 [2020-08-21 16:34:25,794 INFO L226 Difference]: Without dead ends: 3779 [2020-08-21 16:34:25,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-08-21 16:34:25,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2020-08-21 16:34:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3779. [2020-08-21 16:34:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3779 states. [2020-08-21 16:34:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 4342 transitions. [2020-08-21 16:34:25,887 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 4342 transitions. Word has length 267 [2020-08-21 16:34:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:25,888 INFO L479 AbstractCegarLoop]: Abstraction has 3779 states and 4342 transitions. [2020-08-21 16:34:25,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 16:34:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 4342 transitions. [2020-08-21 16:34:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-21 16:34:25,899 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:25,899 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:25,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 16:34:25,900 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:25,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1941606106, now seen corresponding path program 1 times [2020-08-21 16:34:25,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:25,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899372275] [2020-08-21 16:34:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 16:34:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-08-21 16:34:26,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899372275] [2020-08-21 16:34:26,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:26,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 16:34:26,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298847027] [2020-08-21 16:34:26,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 16:34:26,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:26,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 16:34:26,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 16:34:26,278 INFO L87 Difference]: Start difference. First operand 3779 states and 4342 transitions. Second operand 5 states. [2020-08-21 16:34:27,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:27,285 INFO L93 Difference]: Finished difference Result 7550 states and 8714 transitions. [2020-08-21 16:34:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 16:34:27,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-08-21 16:34:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:27,291 INFO L225 Difference]: With dead ends: 7550 [2020-08-21 16:34:27,291 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 16:34:27,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 16:34:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 16:34:27,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 16:34:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 16:34:27,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2020-08-21 16:34:27,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:27,306 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 16:34:27,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 16:34:27,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 16:34:27,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 16:34:27,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 16:34:27,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 16:34:27,733 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2020-08-21 16:34:27,870 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2020-08-21 16:34:29,097 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 175 DAG size of output: 62 [2020-08-21 16:34:29,487 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 47 [2020-08-21 16:34:29,858 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 47 [2020-08-21 16:34:29,862 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 16:34:29,862 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 16:34:29,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 16:34:29,863 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,864 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 16:34:29,865 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 16:34:29,866 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 16:34:29,867 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,868 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,869 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 16:34:29,870 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 16:34:29,871 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 16:34:29,871 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,871 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,871 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,872 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,874 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,875 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 16:34:29,875 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 16:34:29,875 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 16:34:29,875 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 16:34:29,876 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 16:34:29,876 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 16:34:29,876 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,877 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 16:34:29,878 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,879 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 16:34:29,880 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,881 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 16:34:29,882 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 16:34:29,882 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,883 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 16:34:29,884 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 16:34:29,885 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 16:34:29,885 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= |old(~a21~0)| 1))) (let ((.cse5 (= ~a21~0 1)) (.cse7 (= ~a16~0 4)) (.cse8 (not .cse11)) (.cse9 (not (= 4 |old(~a16~0)|))) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse12 (not (<= 5 |old(~a16~0)|))) (.cse0 (and .cse4 .cse3 (= ~a21~0 |old(~a21~0)|) .cse6 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) (.cse1 (not (= ~a12~0 8))) (.cse10 (= |old(~a7~0)| 1))) (and (or (not (<= |old(~a7~0)| 0)) .cse0 .cse1) (or (= |old(~a20~0)| 1) .cse2 .cse0 .cse1) (or (and .cse3 .cse4 .cse5 .cse6 (= ~a8~0 15) .cse7) (not (= 15 |old(~a8~0)|)) .cse8 .cse1 .cse9 .cse10) (or .cse0 .cse11 .cse1) (or (not (= |old(~a8~0)| 13)) (not (= |old(~a17~0)| 1)) (not .cse10) (and .cse3 .cse4 .cse5 .cse6 (= ~a8~0 13) .cse7) .cse8 .cse1 .cse9) (or .cse12 .cse2 .cse0 .cse1) (or .cse12 .cse0 .cse1 .cse10)))) [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 16:34:29,887 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,888 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 16:34:29,889 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 16:34:29,890 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 16:34:29,891 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 16:34:29,891 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 16:34:29,891 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 16:34:29,892 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0) (= ~a17~0 1)) [2020-08-21 16:34:29,892 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 16:34:29,892 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 16:34:29,892 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-21 16:34:29,892 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 16:34:29,892 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a7~0 1))) (let ((.cse0 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse1 (<= 5 ~a16~0)) (.cse4 (not .cse2))) (or (and .cse0 .cse1) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a17~0)| 1)) (and .cse2 (= ~a8~0 13) .cse3 (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a8~0 15) .cse3 .cse4) (not (= |old(~a20~0)| 1)) (not (= ~a21~0 1)) (<= ~a7~0 0) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8)) (and .cse1 .cse4)))) [2020-08-21 16:34:29,892 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 16:34:29,892 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 16:34:29,892 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a7~0 1))) (let ((.cse0 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse1 (<= 5 ~a16~0)) (.cse4 (not .cse2))) (or (and .cse0 .cse1) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a17~0)| 1)) (and .cse2 (= ~a8~0 13) .cse3 (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a8~0 15) .cse3 .cse4) (not (= |old(~a20~0)| 1)) (not (= ~a21~0 1)) (<= ~a7~0 0) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8)) (and .cse1 .cse4)))) [2020-08-21 16:34:29,893 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 16:34:29,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 04:34:29 BoogieIcfgContainer [2020-08-21 16:34:29,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 16:34:29,917 INFO L168 Benchmark]: Toolchain (without parser) took 26243.35 ms. Allocated memory was 140.5 MB in the beginning and 566.2 MB in the end (delta: 425.7 MB). Free memory was 102.1 MB in the beginning and 320.5 MB in the end (delta: -218.4 MB). Peak memory consumption was 445.2 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:29,918 INFO L168 Benchmark]: CDTParser took 0.23 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 16:34:29,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.49 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 170.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:29,919 INFO L168 Benchmark]: Boogie Preprocessor took 114.31 ms. Allocated memory is still 205.0 MB. Free memory was 170.8 MB in the beginning and 165.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:29,920 INFO L168 Benchmark]: RCFGBuilder took 1312.22 ms. Allocated memory was 205.0 MB in the beginning and 239.6 MB in the end (delta: 34.6 MB). Free memory was 165.9 MB in the beginning and 179.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:29,921 INFO L168 Benchmark]: TraceAbstraction took 23968.00 ms. Allocated memory was 239.6 MB in the beginning and 566.2 MB in the end (delta: 326.6 MB). Free memory was 179.9 MB in the beginning and 320.5 MB in the end (delta: -140.7 MB). Peak memory consumption was 423.9 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:29,925 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 843.49 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 170.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.31 ms. Allocated memory is still 205.0 MB. Free memory was 170.8 MB in the beginning and 165.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1312.22 ms. Allocated memory was 205.0 MB in the beginning and 239.6 MB in the end (delta: 34.6 MB). Free memory was 165.9 MB in the beginning and 179.9 MB in the end (delta: -13.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23968.00 ms. Allocated memory was 239.6 MB in the beginning and 566.2 MB in the end (delta: 326.6 MB). Free memory was 179.9 MB in the beginning and 320.5 MB in the end (delta: -140.7 MB). Peak memory consumption was 423.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: 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 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((a16 <= 5 && 5 <= a16) || (a16 <= 5 && !(a20 == 1))) || !(\old(a17) == 1)) || (((a7 == 1 && a8 == 13) && a16 == 4) && a17 == 1)) || !(\old(a7) <= 0)) || ((a8 == 15 && a16 == 4) && !(a7 == 1))) || !(\old(a20) == 1)) || !(a21 == 1)) || a7 <= 0) || !(5 == \old(a16))) || !(a12 == 8)) || (5 <= a16 && !(a7 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.2s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 300 SDtfs, 5821 SDslu, 393 SDs, 0 SdLazy, 8868 SolverSat, 1432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3779occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 793 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 151 PreInvPairs, 211 NumberOfFragments, 498 HoareAnnotationTreeSize, 151 FomulaSimplifications, 93427 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9529 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1838 NumberOfCodeBlocks, 1838 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1827 ConstructedInterpolants, 0 QuantifiedInterpolants, 1331029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 1004/1099 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...