/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:01:24,211 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-21 23:01:24,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:01:24,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:01:24,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:01:24,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:01:24,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:01:24,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:01:24,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:01:24,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:01:24,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:01:24,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:01:24,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:01:24,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:01:24,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 23:01:24,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:01:24,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:01:24,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:01:24,329 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 23:01:24,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:01:24,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:01:24,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:01:24,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:01:24,378 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:01:24,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:01:24,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:01:24,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:01:24,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:01:24,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:01:24,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:01:24,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:01:24,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:01:24,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:01:24,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:01:24,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:01:24,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:01:24,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:01:24,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:01:24,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:01:24,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:01:24,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:01:24,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:01:24,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:01:24,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:01:24,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:01:24,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:01:24,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:01:24,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:01:24,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-08-21 23:01:24,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:01:24,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:01:24,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:01:24,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:01:24,739 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:01:24,739 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-08-21 23:01:24,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3916bafc8/39ae5f99278e409c8082904c5bce6e96/FLAGfeb3537a4 [2020-08-21 23:01:25,371 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:01:25,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-08-21 23:01:25,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3916bafc8/39ae5f99278e409c8082904c5bce6e96/FLAGfeb3537a4 [2020-08-21 23:01:25,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3916bafc8/39ae5f99278e409c8082904c5bce6e96 [2020-08-21 23:01:25,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:01:25,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:01:25,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:01:25,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:01:25,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:01:25,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:01:25" (1/1) ... [2020-08-21 23:01:25,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690168ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:25, skipping insertion in model container [2020-08-21 23:01:25,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:01:25" (1/1) ... [2020-08-21 23:01:25,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:01:25,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:01:26,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:01:26,281 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:01:26,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:01:26,427 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:01:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26 WrapperNode [2020-08-21 23:01:26,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:01:26,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:01:26,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:01:26,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:01:26,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (1/1) ... [2020-08-21 23:01:26,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:01:26,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:01:26,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:01:26,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:01:26,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (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 23:01:26,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:01:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:01:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 23:01:26,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:01:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 23:01:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:01:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:01:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 23:01:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:01:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:01:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:01:28,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:01:28,049 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 23:01:28,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:01:28 BoogieIcfgContainer [2020-08-21 23:01:28,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:01:28,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:01:28,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:01:28,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:01:28,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:01:25" (1/3) ... [2020-08-21 23:01:28,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae67b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:01:28, skipping insertion in model container [2020-08-21 23:01:28,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:01:26" (2/3) ... [2020-08-21 23:01:28,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae67b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:01:28, skipping insertion in model container [2020-08-21 23:01:28,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:01:28" (3/3) ... [2020-08-21 23:01:28,064 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label39.c [2020-08-21 23:01:28,075 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:01:28,087 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:01:28,102 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:01:28,133 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:01:28,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:01:28,134 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:01:28,134 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:01:28,134 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:01:28,134 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:01:28,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:01:28,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:01:28,155 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 23:01:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-21 23:01:28,170 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:28,171 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, 1, 1, 1, 1, 1, 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 23:01:28,172 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:28,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:28,179 INFO L82 PathProgramCache]: Analyzing trace with hash -223585418, now seen corresponding path program 1 times [2020-08-21 23:01:28,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:28,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380409965] [2020-08-21 23:01:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:28,818 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 23:01:28,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380409965] [2020-08-21 23:01:28,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:01:28,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 23:01:28,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733714937] [2020-08-21 23:01:28,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:01:28,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:28,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:01:28,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:01:28,847 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 23:01:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:31,358 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-21 23:01:31,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:31,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-08-21 23:01:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:31,379 INFO L225 Difference]: With dead ends: 698 [2020-08-21 23:01:31,379 INFO L226 Difference]: Without dead ends: 423 [2020-08-21 23:01:31,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:31,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-21 23:01:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-21 23:01:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-21 23:01:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-08-21 23:01:31,484 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 138 [2020-08-21 23:01:31,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:31,485 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-08-21 23:01:31,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:01:31,486 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-08-21 23:01:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-21 23:01:31,492 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:31,493 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:31,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:01:31,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:31,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:31,494 INFO L82 PathProgramCache]: Analyzing trace with hash -940546995, now seen corresponding path program 1 times [2020-08-21 23:01:31,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:31,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281220949] [2020-08-21 23:01:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:31,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:31,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:31,812 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 23:01:31,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281220949] [2020-08-21 23:01:31,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:01:31,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:01:31,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588311797] [2020-08-21 23:01:31,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:01:31,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:31,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:01:31,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:31,822 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-08-21 23:01:33,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:33,501 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-08-21 23:01:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:01:33,503 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2020-08-21 23:01:33,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:33,515 INFO L225 Difference]: With dead ends: 1130 [2020-08-21 23:01:33,515 INFO L226 Difference]: Without dead ends: 719 [2020-08-21 23:01:33,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:01:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-21 23:01:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-08-21 23:01:33,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-21 23:01:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-08-21 23:01:33,589 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 148 [2020-08-21 23:01:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:33,589 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-08-21 23:01:33,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:01:33,589 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-08-21 23:01:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-21 23:01:33,595 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:33,595 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, 1, 1, 1, 1, 1, 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 23:01:33,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:01:33,596 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:33,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:33,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2080872689, now seen corresponding path program 1 times [2020-08-21 23:01:33,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:33,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970155459] [2020-08-21 23:01:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:34,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:34,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:34,280 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 23:01:34,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970155459] [2020-08-21 23:01:34,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:34,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 23:01:34,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969332845] [2020-08-21 23:01:34,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:01:34,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:34,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:01:34,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:01:34,287 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 6 states. [2020-08-21 23:01:35,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:35,704 INFO L93 Difference]: Finished difference Result 1493 states and 2137 transitions. [2020-08-21 23:01:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:35,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-08-21 23:01:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:35,710 INFO L225 Difference]: With dead ends: 1493 [2020-08-21 23:01:35,710 INFO L226 Difference]: Without dead ends: 701 [2020-08-21 23:01:35,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:35,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-21 23:01:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-21 23:01:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-21 23:01:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 890 transitions. [2020-08-21 23:01:35,761 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 890 transitions. Word has length 149 [2020-08-21 23:01:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:35,762 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 890 transitions. [2020-08-21 23:01:35,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:01:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 890 transitions. [2020-08-21 23:01:35,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-08-21 23:01:35,770 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:35,771 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, 1, 1, 1, 1, 1, 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 23:01:35,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:01:35,772 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:35,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:35,772 INFO L82 PathProgramCache]: Analyzing trace with hash 2059513865, now seen corresponding path program 1 times [2020-08-21 23:01:35,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:35,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580394490] [2020-08-21 23:01:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:36,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:36,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:36,261 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 23:01:36,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580394490] [2020-08-21 23:01:36,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:36,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:01:36,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346253210] [2020-08-21 23:01:36,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:01:36,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:36,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:01:36,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:36,265 INFO L87 Difference]: Start difference. First operand 695 states and 890 transitions. Second operand 7 states. [2020-08-21 23:01:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:37,495 INFO L93 Difference]: Finished difference Result 1472 states and 1929 transitions. [2020-08-21 23:01:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:01:37,496 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-08-21 23:01:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:37,501 INFO L225 Difference]: With dead ends: 1472 [2020-08-21 23:01:37,501 INFO L226 Difference]: Without dead ends: 701 [2020-08-21 23:01:37,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:01:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-21 23:01:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-21 23:01:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-21 23:01:37,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 885 transitions. [2020-08-21 23:01:37,547 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 885 transitions. Word has length 150 [2020-08-21 23:01:37,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:37,548 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 885 transitions. [2020-08-21 23:01:37,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:01:37,548 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 885 transitions. [2020-08-21 23:01:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-21 23:01:37,551 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:37,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:37,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:01:37,552 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:37,553 INFO L82 PathProgramCache]: Analyzing trace with hash 938454151, now seen corresponding path program 1 times [2020-08-21 23:01:37,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:37,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284504687] [2020-08-21 23:01:37,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:37,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:01:37,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284504687] [2020-08-21 23:01:37,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:37,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 23:01:37,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311256038] [2020-08-21 23:01:37,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:01:37,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:37,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:01:37,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:01:37,802 INFO L87 Difference]: Start difference. First operand 695 states and 885 transitions. Second operand 5 states. [2020-08-21 23:01:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:38,779 INFO L93 Difference]: Finished difference Result 2075 states and 2722 transitions. [2020-08-21 23:01:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:01:38,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-08-21 23:01:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:38,787 INFO L225 Difference]: With dead ends: 2075 [2020-08-21 23:01:38,787 INFO L226 Difference]: Without dead ends: 1386 [2020-08-21 23:01:38,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 23:01:38,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2020-08-21 23:01:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1380. [2020-08-21 23:01:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-08-21 23:01:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1750 transitions. [2020-08-21 23:01:38,841 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1750 transitions. Word has length 153 [2020-08-21 23:01:38,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:38,842 INFO L479 AbstractCegarLoop]: Abstraction has 1380 states and 1750 transitions. [2020-08-21 23:01:38,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:01:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1750 transitions. [2020-08-21 23:01:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-21 23:01:38,847 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:38,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:38,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:01:38,848 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:38,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:38,849 INFO L82 PathProgramCache]: Analyzing trace with hash -636501178, now seen corresponding path program 1 times [2020-08-21 23:01:38,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:38,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851006776] [2020-08-21 23:01:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:38,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:38,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:39,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:01:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 23:01:39,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851006776] [2020-08-21 23:01:39,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:39,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:01:39,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202675970] [2020-08-21 23:01:39,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:01:39,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:39,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:01:39,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:01:39,124 INFO L87 Difference]: Start difference. First operand 1380 states and 1750 transitions. Second operand 7 states. [2020-08-21 23:01:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:40,350 INFO L93 Difference]: Finished difference Result 3066 states and 3978 transitions. [2020-08-21 23:01:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 23:01:40,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-08-21 23:01:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:40,372 INFO L225 Difference]: With dead ends: 3066 [2020-08-21 23:01:40,373 INFO L226 Difference]: Without dead ends: 1692 [2020-08-21 23:01:40,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:01:40,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2020-08-21 23:01:40,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1406. [2020-08-21 23:01:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1406 states. [2020-08-21 23:01:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1766 transitions. [2020-08-21 23:01:40,438 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1766 transitions. Word has length 176 [2020-08-21 23:01:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:40,439 INFO L479 AbstractCegarLoop]: Abstraction has 1406 states and 1766 transitions. [2020-08-21 23:01:40,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:01:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1766 transitions. [2020-08-21 23:01:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-08-21 23:01:40,447 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:40,447 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:40,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:01:40,448 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:40,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:40,448 INFO L82 PathProgramCache]: Analyzing trace with hash -2030746566, now seen corresponding path program 1 times [2020-08-21 23:01:40,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:40,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336296947] [2020-08-21 23:01:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:40,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:40,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:01:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-21 23:01:40,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336296947] [2020-08-21 23:01:40,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:40,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 23:01:40,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483082806] [2020-08-21 23:01:40,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:01:40,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:40,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:01:40,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:01:40,745 INFO L87 Difference]: Start difference. First operand 1406 states and 1766 transitions. Second operand 5 states. [2020-08-21 23:01:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:41,916 INFO L93 Difference]: Finished difference Result 3356 states and 4232 transitions. [2020-08-21 23:01:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:01:41,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-08-21 23:01:41,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:41,927 INFO L225 Difference]: With dead ends: 3356 [2020-08-21 23:01:41,927 INFO L226 Difference]: Without dead ends: 1956 [2020-08-21 23:01:41,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 23:01:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2020-08-21 23:01:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1956. [2020-08-21 23:01:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2020-08-21 23:01:41,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2367 transitions. [2020-08-21 23:01:41,989 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2367 transitions. Word has length 182 [2020-08-21 23:01:41,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:41,990 INFO L479 AbstractCegarLoop]: Abstraction has 1956 states and 2367 transitions. [2020-08-21 23:01:41,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:01:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2367 transitions. [2020-08-21 23:01:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-08-21 23:01:41,998 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:41,999 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:41,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:01:41,999 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:41,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:42,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1782107597, now seen corresponding path program 1 times [2020-08-21 23:01:42,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:42,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950089467] [2020-08-21 23:01:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:01:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-21 23:01:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:42,293 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 23:01:42,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950089467] [2020-08-21 23:01:42,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:42,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:01:42,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996668739] [2020-08-21 23:01:42,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:01:42,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:42,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:01:42,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:42,297 INFO L87 Difference]: Start difference. First operand 1956 states and 2367 transitions. Second operand 8 states. [2020-08-21 23:01:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:44,506 INFO L93 Difference]: Finished difference Result 4351 states and 5389 transitions. [2020-08-21 23:01:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 23:01:44,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2020-08-21 23:01:44,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:44,524 INFO L225 Difference]: With dead ends: 4351 [2020-08-21 23:01:44,525 INFO L226 Difference]: Without dead ends: 2536 [2020-08-21 23:01:44,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:01:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2020-08-21 23:01:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2522. [2020-08-21 23:01:44,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2522 states. [2020-08-21 23:01:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3026 transitions. [2020-08-21 23:01:44,615 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3026 transitions. Word has length 205 [2020-08-21 23:01:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:44,615 INFO L479 AbstractCegarLoop]: Abstraction has 2522 states and 3026 transitions. [2020-08-21 23:01:44,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:01:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3026 transitions. [2020-08-21 23:01:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-08-21 23:01:44,626 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:01:44,626 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:01:44,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:01:44,627 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:01:44,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:01:44,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1906220709, now seen corresponding path program 1 times [2020-08-21 23:01:44,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:01:44,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421536420] [2020-08-21 23:01:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:01:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:01:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:01:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:01:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:44,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-21 23:01:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:01:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-08-21 23:01:45,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421536420] [2020-08-21 23:01:45,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:01:45,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:01:45,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183270900] [2020-08-21 23:01:45,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:01:45,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:01:45,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:01:45,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:01:45,043 INFO L87 Difference]: Start difference. First operand 2522 states and 3026 transitions. Second operand 8 states. [2020-08-21 23:01:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:01:47,918 INFO L93 Difference]: Finished difference Result 4903 states and 5902 transitions. [2020-08-21 23:01:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 23:01:47,921 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-08-21 23:01:47,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:01:47,922 INFO L225 Difference]: With dead ends: 4903 [2020-08-21 23:01:47,922 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:01:47,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-08-21 23:01:47,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:01:47,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:01:47,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:01:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:01:47,933 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2020-08-21 23:01:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:01:47,933 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:01:47,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:01:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:01:47,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:01:47,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:01:47,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:01:48,400 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 101 [2020-08-21 23:01:49,154 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 59 [2020-08-21 23:01:49,456 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 41 [2020-08-21 23:01:49,686 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 41 [2020-08-21 23:01:49,690 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,690 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 23:01:49,691 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,691 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 23:01:49,692 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 23:01:49,693 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,694 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 23:01:49,695 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 572) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 23:01:49,696 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,697 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 23:01:49,698 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,699 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,700 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 23:01:49,701 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 23:01:49,702 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 23:01:49,703 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,704 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 23:01:49,705 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 23:01:49,706 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 23:01:49,707 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 23:01:49,707 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,707 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,707 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,707 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,707 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,708 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 23:01:49,708 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 23:01:49,708 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 23:01:49,708 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 23:01:49,709 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 23:01:49,709 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 23:01:49,709 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 23:01:49,709 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 23:01:49,710 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,710 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,710 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,710 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,711 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,711 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 23:01:49,711 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 23:01:49,712 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 23:01:49,712 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 23:01:49,713 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 23:01:49,713 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 23:01:49,713 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 23:01:49,713 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 23:01:49,713 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 23:01:49,713 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 23:01:49,714 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse7 (= ~a20~0 |old(~a20~0)|)) (.cse8 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (not (= |old(~a20~0)| 1))) (.cse3 (= |old(~a8~0)| 13)) (.cse1 (and .cse5 .cse4 .cse6 .cse7 (= ~a16~0 |old(~a16~0)|) .cse8)) (.cse2 (not (= ~a12~0 8)))) (and (or .cse0 .cse1 (not (<= 6 |old(~a16~0)|)) .cse2) (or (not .cse3) (not (= |old(~a17~0)| 1)) (not (= |old(~a7~0)| 1)) .cse0 (and .cse4 .cse5 .cse6 .cse7 (= ~a8~0 13) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse2) (or (and .cse5 .cse4 .cse6 .cse7 .cse8 (= ~a16~0 4)) .cse2 (not (= 4 |old(~a16~0)|))) (or .cse3 (not (<= |old(~a16~0)| 5)) .cse1 .cse2) (or (not (<= 15 |old(~a8~0)|)) .cse1 .cse2)))) [2020-08-21 23:01:49,714 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 23:01:49,714 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,714 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 23:01:49,715 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 23:01:49,716 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,717 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 23:01:49,718 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,719 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,720 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,720 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,720 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 23:01:49,720 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,721 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a12~0 8) (= ~a20~0 1) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-21 23:01:49,722 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 23:01:49,722 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:01:49,722 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a17~0 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= ~a12~0 8))) [2020-08-21 23:01:49,722 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 23:01:49,722 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 1) .cse0 (= 5 ~a16~0) (= ~a17~0 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (<= 6 ~a16~0) .cse0) (= ~a16~0 4) (not (= ~a12~0 8)) (<= 15 ~a8~0))) [2020-08-21 23:01:49,722 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 23:01:49,723 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 23:01:49,723 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 1) .cse0 (= 5 ~a16~0) (= ~a17~0 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (<= 6 ~a16~0) .cse0) (= ~a16~0 4) (not (= ~a12~0 8)) (<= 15 ~a8~0))) [2020-08-21 23:01:49,723 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 23:01:49,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:01:49 BoogieIcfgContainer [2020-08-21 23:01:49,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:01:49,759 INFO L168 Benchmark]: Toolchain (without parser) took 24100.06 ms. Allocated memory was 142.1 MB in the beginning and 500.7 MB in the end (delta: 358.6 MB). Free memory was 103.3 MB in the beginning and 393.2 MB in the end (delta: -289.9 MB). Peak memory consumption was 343.8 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,760 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 23:01:49,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.76 ms. Allocated memory was 142.1 MB in the beginning and 206.0 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 170.2 MB in the end (delta: -67.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,763 INFO L168 Benchmark]: Boogie Preprocessor took 148.26 ms. Allocated memory is still 206.0 MB. Free memory was 170.2 MB in the beginning and 164.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,770 INFO L168 Benchmark]: RCFGBuilder took 1477.86 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 164.8 MB in the beginning and 170.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,771 INFO L168 Benchmark]: TraceAbstraction took 21700.85 ms. Allocated memory was 235.9 MB in the beginning and 500.7 MB in the end (delta: 264.8 MB). Free memory was 170.8 MB in the beginning and 393.2 MB in the end (delta: -222.4 MB). Peak memory consumption was 317.5 MB. Max. memory is 7.1 GB. [2020-08-21 23:01:49,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.76 ms. Allocated memory was 142.1 MB in the beginning and 206.0 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 170.2 MB in the end (delta: -67.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.26 ms. Allocated memory is still 206.0 MB. Free memory was 170.2 MB in the beginning and 164.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1477.86 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 164.8 MB in the beginning and 170.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21700.85 ms. Allocated memory was 235.9 MB in the beginning and 500.7 MB in the end (delta: 264.8 MB). Free memory was 170.8 MB in the beginning and 393.2 MB in the end (delta: -222.4 MB). Peak memory consumption was 317.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 572]: 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: ((((((((!(\old(a17) == 1) || (a16 <= 5 && !(a8 == 13))) || !(\old(a16) <= 5)) || (((a7 == 1 && a20 == 1) && 5 == a16) && a17 == 1)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || (6 <= a16 && a20 == 1)) || a16 == 4) || !(a12 == 8)) || 15 <= a8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 3927 SDslu, 320 SDs, 0 SdLazy, 7705 SolverSat, 1040 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2522occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 346 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 95 PreInvPairs, 135 NumberOfFragments, 389 HoareAnnotationTreeSize, 95 FomulaSimplifications, 40446 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3438 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1526 NumberOfCodeBlocks, 1526 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1517 ConstructedInterpolants, 0 QuantifiedInterpolants, 1300016 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 346/378 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...